Blue (game)

Blue Oak (Japanese: オーキド・グリーン Green Okido) is the rival of the undefined and the in the Generation I games, as well as in, their Generation III remakes.

Sometime during the three years between the Generation I games' plotline and the events of the Generation II games and their remakes,, Blue took the place of Giovanni as the Viridian City Gym Leader, as Giovanni had mysteriously disappeared after he disbanded Team Rocket. Blue does not specialize in a particular type of Pokémon and, like Giovanni before him, he gives anyone who defeats him an. In Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, he is one of the leaders of Alola's Battle Tree, the other being.

Role
He is a very cocky and somewhat unfriendly young man, typically bidding people farewell with "Smell ya later!" (Japanese: バイビー！ Baibii!), and his primary motivation throughout the game is to become the greatest Trainer. Aside from that main goal, he also seems to take satisfaction from always being one step ahead of the player character. He eventually accomplishes his goal, defeating the Kanto Elite Four and becoming the Pokémon Champion, but is quickly defeated by the player, losing the position.

In, , and , Blue is the player's rival. He used to be a good childhood friend of but has became mean. He believes that Red is his rival because they both have the same age and the same height. He will meet up with the player as he or she journeys across the Kanto region, challenging him or her every once in a while to test their skills. Like the player, he receives a starter Pokémon from Professor Oak, his grandfather: the one he chooses will be of the type which weakens the type of the player's choice. In Yellow, he will take the Professor Oak had intended for the player.

Eventually, Blue becomes the at Indigo Plateau, though he is defeated by the player before Professor Oak arrives to congratulate him. Frustrated, he journeys to the Sevii Islands at Professor Oak's request, obtaining new Pokémon to use in his matches against the player at the Indigo Plateau (as all in-game Champions return to their position on the player's return to their hometown).

Professor Oak, his grandfather, deems Blue to have not realized how to care for Pokémon, which he commends the player for, on becoming Champion. This is evident in the state Blue leaves Silph Co. in, which is still under Team Rocket's control, leaving the player to take out Giovanni.

In and, however, it is revealed that, after he was defeated at the Indigo Plateau by Red ( does not appear and is not mentioned in the remake games, and did not exist at the time of Generation II), Blue returned to Pallet Town. As Viridian Gym's Leader, Giovanni, had abandoned it on his defeat at the hands of Red, Blue took the position, now handing out the to Trainers who bested him. In Generation IV, he also distributes to those who win the Earth Badge, but does not give a TM out in Generation II. He has not lost his nature as a traveling Trainer, however, and frequently leaves his Gym, creating problems for Trainers who wish to challenge him. When they do find him wherever he is, he points them in the direction of Viridian Gym for an official league battle. Blue will not battle the player until he or she has the other seven Kanto Badges in the remakes. However, in the originals he can be challenged as early as after the meeting on Cinnabar Island.

In HeartGold and SoulSilver only, the player can face Blue in a rematch at the Fighting Dojo. The method of obtaining his number is slightly different from the other Gym Leaders. The player must have his or her Pokémon at maximum friendship and have it massaged by Daisy Oak seven times. After the seventh time, she will give the player Blue's phone number when spoken to. He can be called for a rematch on Sunday night.

In, the player can challenge Blue in the Pokémon World Tournament. He participates in the Champions Tournament, with Giovanni filling in his space as a Kanto Gym Leader.

While he does not appear in, Blue is mentioned by a woman in the Magenta Plaza Pokémon Center in Lumiose City, who says that Blue traveled to the Kalos region to study abroad.

In Pokémon Sun, Moon, Ultra Sun, and Ultra Moon, Blue appears at Alola's Battle Tree, having been invited to be a leader of the facility alongside Red. When the player first enters the facility area, Red and Blue will appear to greet the player and congratulate them on becoming the Champion of Alola, after which the player gets to battle against one of them.

In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, Blue is first encountered in Pewter City after the player has defeated Brock. He mentions how he also left on a journey from Pallet Town sometime earlier than the player, and, as Professor Oak hadn't made a Pokédex by the time he left for his journey, had had to resort to scribbling down on a map what Pokémon he encountered and where. He's later met briefly met again aboard the S.S. Anne, where he will give the player a Shalour Sable and warn them and about Team Rocket. When Team Rocket later takes over Silph Co., Blue is met again at the first floor of the company's office building in Saffron City. He talks about going to the Pokémon League to ask the Elite Four's help in taking down Team Rocket, but wishes to battle the player and Trace first before doing so. After the player has defeated Blue, Trace battles him next while the player starts climbing the building.

After the player has earned seven Badges, Blue appears in Professor Oak's Laboratory in Pallet Town, where he congratulates the player and Trace from defeating Team Rocket at Silph Co., rewarding them with a Key Stone each and also giving the player all the Kanto starter Pokémon Mega Stones. Once the player has defeated Giovanni at the Viridian Gym, Blue meets the player in front of it and reveals that he had been asked multiple times to take over the Gym, and now that Giovanni has left it, he decides to finally accept the request and become the new Viridian Gym Leader. During the post-game, the player can rematch Blue at the Gym once per day.


 * For all of Blue's teams in, and , see here

Champion battle
If the undefined chose :





If the undefined chose :





If the undefined chose :






 * For all of Blue's teams in, see here

Champion battle
If evolved into :





If evolved into :





If evolved into :










 * For all of Blue's teams in, see here

Champion battle
If the undefined chose :





If the undefined chose :





If the undefined chose :





Rematch
If the undefined chose :





If the undefined chose :





If the undefined chose :





Gym battle




Rematch




Blue uses three of these Pokémon in Single Battles, four in Double and Rotation Battles, and all six in Triple Battles.





First possible battle




Battle Tree
Blue uses four of these Pokémon in Double Battles and two in Multi Battles.

Rematch




🏴󠁧󠁢󠁥󠁮󠁧󠁿

 * For all of Blue's possible teams in 🏴󠁧󠁢󠁥󠁮󠁧󠁿, see here

Round 1




Round 2




Round 1




Round 2




Professor Oak's Laboratory


 * If talked to before going into wild grass
 * "Yo ! Gramps isn't around!"
 * "I ran here 'cos he said he had a Pokémon for me."


 * After getting dragged into lab
 * "Gramps! I'm fed up with waiting!"
 * "Hey! Gramps! What about me?"


 * Before player chooses the starter Pokémon
 * "Heh, I don't need to be greedy like you! Go ahead and choose, !"
 * "Humph, I'll get a better  than you!"


 * When choosing starter
 * "I'll take this one, then!"


 * When snatching starter
 * "No way!, I want this Pokémon!"
 * "Gramps, I want this one!"


 * After choosing starter
 * "My Pokémon looks a lot stronger."
 * "Heh, my Pokémon looks a lot stronger."


 * Before battle
 * "Wait ! Let's check out our Pokémon! Come on, I'll take you on!"


 * After being defeated
 * "WHAT? Unbelievable! I picked the wrong Pokémon!"


 * If the player is
 * "Yeah! Am I great or what?"


 * After the battle
 * "Okay! I'll make my Pokémon</sc> fight to toughen it up! ! Gramps! Smell you later!"


 * After delivering the Oak's Parcel
 * "Gramps! What did you call me for?"
 * "Gramps! Gramps, my Pokémon</sc> has grown stronger! Check it out!"
 * "Alright Gramps! Leave it all to me! I hate to say it, but I don't need you! I know! I'll borrow a Town Map</sc> from my sis! I'll tell her not to lend you one, ! Hahaha!"


 * Optional battle
 * Before the battle
 * "Hey! ! You're going to Pokémon League</sc>? Forget it! You probably don't have any Badge</sc>s! The guard won't let you through! By the way, did your Pokémon</sc> get any stronger?"


 * After being defeated
 * "Awww! You just lucked out!"


 * If the player is defeated
 * "Yeah! Am I great or what?"


 * After being defeated
 * "I heard Pokémon League</sc> has many tough trainers! I have to figure out how to get past them! You should quit dawdling and get a move on!"


 * Mandatory battle
 * Before the battle
 * "What? ! What a surprise to see you here! So you're going to Pokémon League</sc>? You collected all the Badge</sc>s too? That's cool! Then I'll whip you as a warm up for Pokémon League</sc>! Come on!"


 * After being defeated
 * "What!? I was just careless!"


 * After being defeated
 * "That loosened me up! I'm ready for Pokémon League</sc>!, you need more practice! But hey, you know that! I'm out of here. Smell ya!"

Cerulean City
 * Before battle
 * "Yo! ! You're still struggling along back here? I'm doing great! I caught a bunch of strong and smart Pokémon</sc>! Here, let me see what you caught, !"


 * After being defeated
 * "Hey! Take it easy! You won already!"


 * If the player is defeated
 * "Yeah! Am I great or what?"


 * After being defeated
 * "Hey, guess what? I went to Bill</sc>'s and got him to show me his rare Pokémon</sc>! That added a lot of pages to my Pokédex</sc>! After all, Bill</sc>'s world famous as a </sc>! He invented the <sc>Pokémon</sc> Storage System on PC! Since you're using his system, go thank him! Well, I better go rolling! Smell ya later!"

S.S. Anne
 * Before battle
 * ''"Bonjour! ! Imagine seeing you here!, were you really invited? So how's your <sc>Pokédex</sc> coming? I already caught 40 kinds, pal! Different kinds are everywhere! Crawl around in grassy areas!


 * Being defeated
 * "Humph! At least you're raising your <sc>Pokémon</sc>!"


 * After being defeated
 * "I heard there was a <sc></sc> master on board. But, he was just a seasick, old man! But <sc>Cut</sc> itself is really useful! You should go see him! Smell ya!"

Pokémon Tower
 * Before battle
 * "Hey, ! What brings you here? Your <sc>Pokémon</sc> don't look dead! I can at least make them faint! Let's go, pal!"


 * Being defeated
 * "What? You stinker!" I took it easy on you too!"


 * After being defeated
 * "How's your <sc>Pokédex</sc> coming, pal? I just caught a <sc></sc>! I can't find the grown-up <sc></sc> yet! I doubt there are any left! Well I better get going! I've got a lot to accomplish, pal! Smell ya later!"

Silph Co.
 * Before battle
 * "What kept you ? Hahaha! I thought you'd turn up if I waited here! I guess <sc>Team Rocket</sc> slowed you down! Not that I care! I saw you in <sc></sc>, so I decided to see if you got better!"


 * Being defeated
 * ''"Oh ho! So, you are ready for <sc>Boss Rocket</sc>!


 * After being defeated
 * "Well, ! I'm moving on up and ahead! By checking my <sc>Pokédex</sc>, I'm starting to see what's strong and how they evolve! I'm going to the <sc>Pokémon League</sc> to boot out the <sc>Elite Four</sc>! I'll become the world's most powerful trainer!, well good luck to you! Don't sweat it! Smell ya!"

Indigo Plateau
 * Before battle
 * "Hey! I was looking forward to seeing you, ! My rival should be strong to keep me sharp! While working on my <sc>Pokédex</sc>, I looked all over for powerful <sc>Pokémon</sc>! Not only that, I assembled teams that would beat any <sc>Pokémon</sc> type! And now! I am the <sc>Pokémon League</sc> Champion! <Player>! Do you know what that means? I'll tell you! I am the most powerful trainer in the world!"


 * Being defeated
 * "NO! That can't be! You beat my best! After all that work to become <sc>League</sc> champ? My reign is over already? It's not fair!"


 * After being defeated
 * "Why? Why did I lose? I never made any mistakes raising my <sc>Pokémon</sc>… Darn it! You're the new <sc>Pokémon League</sc> Champion! Although I don't like to admit it."

Cinnabar Island
 * "Who are you? Well, it's plain to see that you're a trainer… My name's <sc>Blue</sc>. I was once the <sc>Champion</sc>, although it was for only a short time… That meddling <sc></sc> did me in… Anyway, what do you want? You want to challenge me or something? …I hate to say it, but I'm not in the mood for a battle now. Take a good look around you… A volcano erupts, and just like that, a whole town disappears. We can go on winning and losing in <sc>Pokémon</sc>. But if nature so much as twitches, we can lose in a second. … That's the way it is… But, anyway, I'm still a trainer. If I see a strong opponent, it makes me want to battle. If you want to battle me, come to the <sc>Viridian Gym</sc>. I'll take you on then."

Viridian Gym
 * Before battle
 * "Yo! Finally got here, huh? I wasn't in the mood at <sc>Cinnabar</sc>, but now I'm ready to battle you. … You're telling me you conquered all the <sc>Gyms</sc> in <sc>Johto</sc>? Heh! <sc>Johto</sc>'s <sc>Gyms</sc> must be pretty pathetic then. Hey, don't worry about it. I'll know if you are good or not by battling you right now. Ready, <sc>Johto</sc> boy/<sc>Johto Champ</sc>?"


 * Being defeated
 * "What? How the heck did I lose to you? … Tch, all right… Here, take this-- it's <sc></sc>."


 * After being defeated
 * "… All right, I was wrong. You're the real deal. You are a good trainer. But I'm going to beat you someday. Don't you forget it!"
 * "Listen, you. You better not lose until I beat you. Got it?"

Professor Oak's Laboratory
 * If talked before going into grass
 * "What, it's only ? Gramps isn't around."


 * After getting dragged into lab
 * "Gramps! I'm fed up with waiting!"
 * "Hey! Gramps! No fair! What about me?"


 * Before player chooses the starter Pokémon
 * "Heh, I don't need to be greedy like you. I'm mature! Go ahead and choose, !"


 * While choosing the starter
 * "I'll take this one, then!"


 * After choosing starter
 * "My <sc>Pokémon</sc> looks a lot tougher than yours."


 * Before battle
 * "Wait ! Let's check out our <sc>Pokémon</sc>! Come on, I'll take you on!"


 * After being defeated
 * "WHAT? Unbelievable! I picked the wrong <sc>Pokémon</sc>!"


 * If the player is
 * ", come back! Yeah! Am I great or what?"


 * After the battle
 * "Okay! I'll make my <sc>Pokémon</sc> battle to toughen it up! ! Gramps! Smell you later!"


 * After delivering the Oak's Parcel
 * "Gramps! I almost forgot! What did you call me for?"
 * "Alright Gramps! Leave it all to me! I hate to say it, but you won't be necessary for this. I know! I'll borrow a <sc>Town Map</sc> from my sis! I'll tell her not to lend you one, ! Hahaha! Don't bother coming around to my place after this!"


 * When receiving National Pokédex:
 * "Hey, I heard that! Gramps, what's with favoring over me all the time? I went and collected more <sc>Pokémon</sc> and faster, too. You should just let me handle everything."
 * "Gramps, calm down. Don't get so excited. I'll get the <sc>Pokédex</sc> completed, don't you worry about a thing. I think I'll try looking around <sc>One Island</sc> first… Anyways, I am outta here!"


 * Optional battle
 * Before the battle
 * "Hey! ! You're off to the <sc>Pokémon League</sc>? Forget about it! You probably don't have any <sc>Badge</sc>s, do you? The guard won't let you through without them. By the way, did your <sc>Pokémon</sc> get any stronger?"


 * After being defeated
 * "Awww! You just lucked out!"


 * If the player is defeated
 * "<current Pokémon>, come back! Yeah! Am I great or what?"


 * After being defeated
 * "I heard the <sc>Pokémon League</sc> is crawling with tough <sc>Trainers</sc>. I have to figure out how to get past them. You should quit dawdling and get a move on!"


 * Mandatory battle
 * Before the battle
 * "What? ! What a surprise to see you here! So you're going to the <sc>Pokémon League</sc>? You collected all the <sc>Badge</sc>s too? That's cool! Then I'll whip you,, as a warm-up for the <sc>Pokémon League</sc>! Come on!"


 * Being defeated
 * "What!? I was just careless, you!"


 * After being defeated
 * "That loosened me up. I'm ready for the <sc>Pokémon League</sc>!, you need more practice! But hey, you know that! I'm out of here. Smell ya!"

Cerulean City
 * Before battle
 * "Yo! ! You're still struggling along back here? I'm doing great! I caught a bunch of strong and smart <sc>Pokémon</sc>! Here, let me see what you caught, !"


 * Being defeated
 * "Hey! Take it easy! You won already!"


 * After being defeated
 * "Hey, guess what? I went to <sc>Bill</sc>'s and got him to show me his rare <sc>Pokémon</sc>. That added a lot of pages to my <sc>Pokédex</sc>! After all, <sc>Bill</sc>'s world famous as a <sc>PokéManiac</sc>. He invented the <sc>Pokémon</sc> Storage System on PC, too. Since you're using his system, go thank him. Well, I better go rolling! Smell ya later!"
 * "Oh yeah, right. I feel sorry for you. No, really. You're always plodding behind me. So here, I'll give you a little present as a favor. A chatty gossip like you… That thing's perfect. I don't need it because I don't give a hoot about others. All right, this time I really am gone. Smell ya!"

S.S. Anne
 * Before battle
 * "Bonjour! ! Imagine seeing you here!, were you really invited? So how's your <sc>Pokédex</sc> coming? I already caught 40 kinds, pal. Different kinds are everywhere. Crawl around in grassy areas, and look hard for them."


 * Being defeated
 * "Humph! At least you're raising your <sc>Pokémon</sc>!"


 * After being defeated
 * "I heard there was a <sc>Cut</sc> master on board. But he was just a seasick old man! <sc>Cut</sc> itself is really useful! Yup, it'll be handy. You should go see him, too. Smell ya!"

Pokémon Tower
 * Before battle
 * "Hey, ! What brings you here? Is your <sc>Pokémon</sc> dead? Hey! It's alive! I can at least make them faint! Let's go!"


 * Being defeated
 * "What? You stinker!" I took it easy on you, too!"


 * After being defeated
 * "How's your <sc>Pokédex</sc> coming? I just caught a <sc>Cubone</sc>! I can't find the bigger <sc>Marowak</sc>. Where could they be? I bet there aren't any left! Well I better get going! I've got a lot to accomplish, unlike you! Smell ya later!"

Silph Co.
 * Before battle
 * "What kept you ? Hahaha! I thought you'd turn up if I waited here! I guess <sc>Team Rocket</sc> slowed you down! Not that I care! I saw you in <sc>Saffron</sc>, so I decided to see if you got better!"


 * Being defeated
 * "Oh man! So, you are ready for <sc>Boss Rocket</sc>!"


 * After being defeated
 * "Well, ! I'm moving on up and ahead! By checking my <sc>Pokédex</sc>, I'm starting to see what's strong and how they evolve! Am I a genius or what? I'm going to the <sc>Pokémon League</sc> to boot out the <sc>Elite Four</sc>! I'll become the world's most powerful <sc>Trainer</sc>!, well good luck to you! Don't sweat it! Smell ya!"

Indigo Plateau
 * Before battle
 * "Hey, ! / My rival should be strong to keep me sharp. While working on my <sc>Pokédex</sc>, I looked all over for <sc>Pokémon</sc>. Not only that, I assembled teams that would beat any <sc>Pokémon</sc> type. And now… I am the <sc>Pokémon League Champion</sc>! <Player>! Do you know what that means? I'll tell you. I am the most powerful <sc>Trainer</sc> in the world!"


 * Being defeated
 * "NO! That can't be! You beat me at my best! After all that work to become the <sc>League Champ</sc>? My reign is over already? It's not fair!"


 * After being defeated
 * "Why? Why did I lose? I never made any mistakes raising my <sc>Pokémon</sc>… Darn it! You're the new <sc>Pokémon League Champion</sc>! Although I don't like to admit it…"


 * "Hey! ! What are you doing here in the <sc>Sevii Islands</sc>? You should quit copying me, you know? Anyways, I already got my <sc>Pokémon Egg</sc> so I'm done with this island. Heh, I bet you don't even know about <sc>Pokémon Eggs</sc>. You'll never fill your <sc>National Pokédex</sc> that way. By the way, I saw someone we both know on this island. Why don't you go look around if it makes you curious? Me, I don't have time to waste. Be smelling ya!"


 * "Hey, ! How's your <sc>Pokédex</sc> filling up? It looks like it's impossible to get all the <sc>Pokémon</sc> by hanging around just these parts. Maybe there are <sc>Pokémon</sc> we don't know about somewhere far away… … … … … … … … … … Well, if I can't do it, there's no way for you to get it done. I'm not going to get all desperate over this. I'll keep collecting <sc>Pokémon</sc> at my own pace while I train them. That's what I'll do. So there's no point staying here. I may as well leave for home. That's that, then! Smell ya later!"

Cinnabar Island
 * When first talked to
 * "Who are you? My name's Blue. I was once the Kanto Champion. Although it was short-lived thanks to … Anyway, take a good look around you…"
 * "A volcano erupts, and just like that, a whole town disappears. We can go on winning and losing in Pokémon, but if nature so much as twitches, we can be overwhelmed in a second… That's the way it is… But, anyway, I'm still a Trainer. If I see a strong opponent, it makes me want to battle."


 * If the player has less than seven Kanto Badges
 * "If you want to battle me… for real, show me how many Kanto Badges you've got. … <number of Kanto Badges>… You're not ready to battle me…"


 * If the player has seven Kanto Badges
 * "If you want to battle me… for real, come to the Viridian Gym. I'll be waiting for you!"


 * On Fridays, after defeating Red
 * ''"You are quite something! You defeated Red!? That's great! Let's take a picture together!"
 * Yes: "All right!"
 * "Thanks for the nice picture!"
 * No: "Oh, well..."

Viridian Gym
 * Before battle
 * "Yo! Finally got here, huh? I wasn't in the mood at Cinnabar, but now I'm ready to battle you. … You're telling me you conquered all the Gyms in Johto? Hahaha! Heh! Johto's Gyms are that pathetic? Hey, don't worry about it. I'll know if you are good or not by battling you right now."


 * After sending out last Pokémon
 * "Heh heh heh… You're unprepared for this. We'll knock you down!"


 * Last Pokémon on critical health
 * "Perhaps I'm the one who was unprepared?"


 * Being defeated
 * "This is the real power of Johto…"


 * After being defeated
 * "No way! How the heck did I lose to you? … Tch, all right… Here, take this. It's the ."
 * "With this Badge, you'll be able to use the HM move ! Here! Take this as well!"
 * "It contains ! It allows slower Pokémon to move before faster Pokémon for a while. It's a very tricky move, isn't it? Hence the name!"
 * "… All right, I was wrong. You're the real deal. You are a good trainer. But I'm going to beat you someday. Don't you forget it!"

Fighting Dojo
 * Before battle
 * "Good! Thanks for coming to lose to me!"


 * Being defeated
 * "Just as I expected! No wonder you've become the Champion…"


 * After being defeated
 * ''"Hahaha! My scare tactic doesn't scare you at all!"

PokéGear Phone
 * For registering Blue's number, see Daisy Oak


 * Calling him
 * "Hello…Whatever… Don't worry about me. I'm doing peachy over here! If it's not Sunday night, then I'm not available. Call then or forget about it!"


 * On Sunday evenings
 * "Hello…Whatever… Don't worry about me. I'm doing peachy over here! I was just looking for something to do! Wanna battle me again?"
 * Yes: "Whatever! I won't lose to you again, got that? I'll be waiting at the Fighting Dojo in Saffron City."
 * No: "Whatever. Sounds like you're pretty busy yourself."


 * Before defeating all Gym Leaders
 * "Hello…Whatever… Don't worry about me. I'm doing peachy over here! Are there any Gym Leaders you haven't battled yet? Make your move! Show some initiative!"


 * If he is waiting at the Fighting Dojo
 * "Hello…Whatever… Don't worry about me. I'm doing peachy over here! I'm waiting at the Fighting Dojo in Saffron City. C'mon, show a little initiative here!"


 * If the player is in a Gym or the Fighting Dojo
 * "Wha... I can't make out what you're saying! This connection is no good! Call from somewhere better, OK?"


 * If the player has made too many appointments to battle
 * "Wha…? Oh, C'mon… Haven't you made plans with enough other people?"


 * Blue calling the player
 * "I'm Blue. Man, this guy called Red brought me down in a heartbeat. I haven't seen him in a long time...I wonder where he is and what he's up to… Come to think of it, you look a little bit like Red. Yeah, you do. Just...Just a little bit. Whatever..."
 * "I'm Blue. When I look at Pokémon, I get a strange feeling—you ever get that? There's round ones, flying ones, swimming ones, flaming ones, freezing ones, shiny ones, dark ones—there are so many different types, and yet, they're all Pokémon. I mean, like Pokémon, there's not just one type of person, either… But it's still kind of strange when you think about it."
 * "I'm Blue. Anyway, you're really something. Traveling all by yourself, visiting all these different Gyms you find and beating them all… Well, you're not really alone…You've got Pokémon with you!"


 * If he is waiting at the Fighting Dojo
 * "I'm Blue. Remember we made plans to battle at the Fighting Dojo in Saffron City? Wha...! Did you seriously forget? C'mon, I don't have all day!" 

Pokémon World Tournament
 * Before battle (first round)
 * "Right now, I'm really in the mood for a battle!"


 * Before battle (second round)
 * "But, I'm a Trainer. If I see a strong opponent, it makes me want to battle."


 * Before battle (final round)
 * "I'll know if you are good or not by battling you right now."


 * Being defeated
 * "How the heck did I lose to you?"


 * If the player is defeated
 * "This is what I, Kanto's top-level Trainer, can really do!"


 * After being defeated
 * "You're the real deal. You are a good Trainer. But I'm going to beat you someday. Don't you forget it!"


 * After winning
 * "You're tough, I'll give you that. But there's always someone better. You have to be more dedicated! Smell ya later!"


 * In the lobby, after the tournament
 * "Three wins and you've done it! Luck can also be a factor, and I'm still not satisfied at all! Oh, I didn't think you won because of luck, though!"

Pokémon Sun, Moon, Ultra Sun, and Ultra Moon

 * Battle Tree (first visit)
 * ''"You're, right?
 * Yes: "See that Red! I've still got it!"
 * No: "Oh, really? Look, maybe you can fool Red with that kind of act, but not me!"
 * "The name's Blue! This guy is Red."
 * "Nice to meet you. And hey, congrats to you on becoming Champion of Alola! We were both Champions of the Kanto region, in our own days. Nice to meet a fellow Champ, yeah? What do you say, Red?"
 * "Still as silent as ever, eh?"
 * "Look, I'm a Trainer. So, if I see another strong Trainer, I'm gonna want to fight them. So how about a battle? Which one of us'll you choose?"
 * Red: "...Kch. Fine. "
 * Blue: "Yeah, you get it. Here I go!"


 * Being defeated
 * "You're a pretty big deal! Amazing that I could lose!"


 * After being defeated
 * "You got me!"


 * After either he or Red is defeated
 * "We were called here to be the new bosses of this here Battle Tree! We'll definitely battle again...if you can manage to make it through the Battle Tree, that is! And when we do, I'll show you just what a top Kanto Trainer can do!"


 * Battle Tree (proper)
 * Before battle
 * "Let's have a battle, first Champion of Alola!"


 * Being defeated
 * "OK! You're pretty good!"


 * If the player is defeated
 * "This is what I, Kanto's top-level Trainer, can really do!"


 * Battle Tree (super)
 * Before battle
 * "Show it to me—the true power of the first Champion of Alola!"


 * Being defeated
 * "How did I lose? You really are the real deal!"


 * If the player is defeated
 * "This is what I, Kanto's top-level Trainer, can really do!"

Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!

 * Pewter City
 * "Hey, you there! Newbie! Don’t tell me... You've gotta be, right?"
 * I am! That’s amazing!: "Ha, I knew it! I'm always right."
 * How did you know that?!: "'Cause you look just like my gramps said."
 * "I’m Blue! I heard from my gramps that two new kids set out from Pallet Town to become Trainers, just like I did once. So I came to check you out! I was thinking you might want some advice on how to beat the Gym from an expert Trainer like me, but looks like I showed up too late, huh? Seems you're not too shabby yourself... So I guess you've earned a reward, newbie!"
 * " be even better for catching Pokémon than plain old Poké Balls. And hey, that thing you’ve got there... That's a Pokédex, right? So Gramps finally went and made one! He used to make me just scribble on a map with a pencil about where I encountered Pokémon... You’d better do a good job helping him out! He may be Professor Oak to you, and sure, he’s an old coot, but he’s still my gramps! Smell ya later, newbie!"


 * S.S. Anne
 * "Bonjour! If it isn't and <>! Didn’t think I'd be seeing the two of you here!"
 * "Not hardly. I got invited to the exclusive party for Trainers, but I’m pretty much done with this scene. I got plenty of party favors, too. Here... I can even share one with you."
 * "More importantly, though... you wanna know what I overheard at the party? You guys know about Team Rocket, right?"
 * They’re the bad guys!: "Yup. There are all kinds of rumors going around about the things they get up to."
 * I battled them before...: "Seriously? You must be fearless or something, kid."
 * "Anyway, the point is this: Team Rocket is a dangerous group, and they’re trying to use Pokémon to make themselves rich. I might do some digging into what it is they’re really after... And you two’d better stay out of their path!"


 * Silph Co.
 * "Aw, don’t be such a stick in the mud. You won’t even let us have a little look around?"
 * "You and me are on the same wavelength, . We can’t keep letting Team Rocket do whatever they please!"
 * That's right!: "Come on! It’s time we did a little strategy planning!"
 * What do we do?: "We do whatever we can do!"
 * "...So in short, the plan is this: is gonna drive Team Rocket out of Silph Co., just like he/she planned. But it’d be crazy to try something like that alone, so is going with /."
 * "While you pip-squeaks do that, I’m gonna do a loop around all of Kanto, squashing out Team Rocket wherever I find 'em! One of us is sure to find out where their boss is hiding. And while I’m at it, I’ll swing by the Pokémon League to tell the bigwigs there what’s going on."
 * "Maybe! So that’s the battle plan, /! Time to split up and put it into action!"
 * ''"...Heh. If only it were that simple. Fact is, there’s one more thing we’ve gotta do here first. ! ! If you want me to leave this place up to you two newbies, then prove that you’re up to the task!"
 * "I don’t care who goes first, so show me what you've got!"


 * If the player tries to walk away
 * "Hey now! You lost or something? I'm standing right here!"


 * Before battle
 * "So you’re my first challenger, huh, ?"
 * Yes: "That’s what I like to hear! Here I go!"
 * No: "Hmph. Your loss, I guess."


 * Being defeated
 * "Exactly what I'd expect from a Pallet Town Trainer!"


 * After being defeated
 * "Oh, man! So you really are ready for Team Rocket! I feel pretty good about leaving this place in your hands! Then you're next, ! Come at me—I’m just getting warmed up!"


 * Professor Oak's Laboratory
 * "Gramps, no one ever laughs at that joke! Would you give it a break? And besides, we’ve already met!"
 * "Yeah, yeah. Sure, Gramps. More important than that, though... <Player>! <Rival>! You two did awesome!"
 * "With Team Rocket! I never thought that their boss would actually be holed up there at Silph Co.! And the two of you managed to take him down!"
 * "So what? You and your Pokémon did your best, too, right, ? So I’ve got a little something for you two! As a reward for your hard work."
 * "The two of you should be able to use these well! These are Mega Stones!"
 * "You’re gonna take on the Pokémon League, aren’t you? Give these a try when you do!"
 * "Oh. But what’re you even doing back here in Pallet Town? ...What? Viridian City’s Gym Leader is never at the Gym? Huh, that’s odd... Maybe I’ll go take a look myself..."


 * Viridian City
 * "Congrats, kid! Boy, though, what a shock... I never thought a criminal would use a Pokémon Gym as their hideout... ... ... ... That’s it! I’ve decided! I’ll look after the Viridian City Gym from now on! I don’t really like to get tied down, so I’ve always said no when they ask about it, but... I’m finally ready. I’ll be the Gym Leader from now on."
 * That's great!: "Thanks! With an awesome Trainer like me around, I’m pretty sure the Kanto region’ll be safe from troublemakers like Team Rocket forever!"
 * I want to battle you!: "Huh? I mean, sure, but I think you’ve got a bigger challenge to face right now."
 * "So then, ... Time for you to take on the ! Just keep going along to the west of here, and you won’t miss it. The Elite Four are tough opponents, but don’t you dare lose!"


 * If talked to again
 * "The first challenger I’ll have here... I’m sure it’s gonna be ! I’m gonna show that little upstart how it's done!"


 * Viridian Gym
 * Before entering the Hall of Fame
 * "Stopped by to say hello, huh? Don't you worry. Now that I'm a Gym Leader, I’m gonna make sure that all the Trainers in Kanto are up to my standard!"


 * Before battle (first rematch)
 * "Yo, ! Since I’ve become the Gym Leader here, the Viridian City Gym has really stepped it up! It’s made each day pretty busy, though! By the way... what do you think of this Gym’s design? It makes me look like some kinda bad guy, right? I’ve been thinking of remodeling the place. Well, it doesn’t matter all that much, I guess. No matter the place, I’m still the best there is! All right! It’s been a while since I’ve gone all out. So I’ll show you the strength of a top Trainer!"


 * Before battle (subsequent rematches)
 * "Oh ho! Couldn't stand being away from my greatness? <Rival> just came by recently, too! That one's been getting pretty strong recently. You'd better watch out! All right! Let's get started! No way I'm losing this time!"


 * Being defeated
 * "Aw man, what was I doing?"


 * After being defeated
 * "As long as I can battle strong opponents, I don't care what happens! You get what I mean, right? You'd better come back again!"

Pokémon Stadium 2

 * After defeating Lance
 * "So you're the trainer who conquered <sc>Johto Castle</sc>. Come on, I'll take you on anytime."


 * Before battle
 * "I'm <sc>Blue</sc>, the <sc>Viridian Gym Leader</sc>. Let's get going!"
 * "You must be pretty good to get this far."
 * "I don't know about your strategy, but balance is the key!"


 * Sending out first Pokémon
 * "There!"


 * Sending out a new Pokémon
 * "It's <Pokémon>!"
 * "<Pokémon>, it's yours for the taking!"
 * "<Pokémon>, it's your show!"
 * "Get it, <Pokémon>!"


 * Recalling a Pokémon
 * "This is pointless! Get back here!"
 * "Switch, <Pokémon>!"
 * "Way to go, <Pokémon>!"
 * "<Pokémon>, that's good!"


 * Own Pokémon faints
 * "Wh-what! Wait a sec!"
 * "Arrrgh! You jerk!"


 * Player's Pokémon faints
 * "There! Yes!"


 * Own Pokémon lands a critical hit
 * "Yes! Critical hit! Ha, ha, ha! Lucky!"


 * Player's Pokémon lands a critical hit
 * "Waaah! No luck there! Took it where it's weak!"


 * Own Pokémon being hurt by a
 * "Man, that's frustrating."


 * Successfully the player's Pokémon
 * "OK!"


 * Successfully ing the player's Pokémon
 * "Heh, that's working!"


 * Successfully the player's Pokémon
 * "Look at that! All frozen."


 * If the player is defeated
 * "That's mine!"


 * After being defeated
 * "Lost? I lost? No way!"
 * "You really are tough. I have to hand it to you."
 * "I've only lost to and now to you… Him? Hee, hee…"


 * After winning
 * "It all comes down to your sense of balance."
 * "See? My power is what got me here."
 * "Sorry to say it, but this is it for you."


 * If the battle ended in a draw
 * "You just got lucky."


 * If the player runs from the battle
 * "What? How boring is that?"


 * After defeating all Kanto Gym Leaders
 * "You defeated all eight of us. You've earned the right to challenge in the <sc>Kanto Gym Leader Castle</sc>."

In the main series
Blue himself does not make an appearance in the anime; however, he receives an anime counterpart in Gary Oak, Ash Ketchum's rival. Much like Blue, Gary was initially very arrogant, but mellowed out after he was defeated by his rival. Unlike Blue, however, Gary has not been shown to have taken over the Viridian Gym. Instead, he has decided to become a Pokémon researcher like his grandfather, and is currently working with Professor Rowan in Sinnoh.

In Pokémon Origins
Blue also had a direct counterpart that appeared in the Pokémon Origins mini-series. This counterpart shared Blue's name, in-game role, and design.

In Pokémon Generations
Blue prominently appeared in The Challenger. At the beginning of the episode, he was the subject of the Elite Four's latest conversation, where they described him as a very strong Trainer who was the first in a long time to have collected eight Gym Badges. He was subsequently shown challenging the Elite Four at the Indigo Plateau and defeating each member with relative ease, thus claiming the title of Champion. Shortly after this, he was seen welcoming and accepting his challenge.

Badges obtained
This listing is of the Badges Blue has obtained in the Kanto region:
 * At least eight Badges (prior to The Challenger)

In the How I Became a Pokémon Card manga
Blue appeared in PW10 of How I Became a Pokémon Card.

In the Pocket Monsters HGSS Jō's Big Adventure manga
Another counterpart of Blue made an appearance in Pocket Monsters HGSS Jō's Big Adventure, where he is the final Gym Leader in Kanto that Jō faced. After the battle, Blue informed him of at Mt. Silver who could be battled.

In other manga
Blue, like many in-game characters, has several counterparts in the many different manga series based on Pokémon. While these manga counterparts are distinct from Blue and each other, they generally share his appearance and personality traits.

In The Electric Tale of Pikachu manga


Blue's anime counterpart, Gary Oak, also appears in the The Electric Tale of Pikachu manga. In the manga, he has a sister (unseen in the anime) named May.

In the Pokémon 4Koma manga
In Pokémon 4Koma, Blue has a counterpart simply named.

In the Pokémon Adventures manga
Blue has a direct counterpart in a similarly named character of Pokémon Adventures.

In the Pokémon Pocket Monsters manga
Blue has a counterpart in the Pokémon Pocket Monsters manga named, sharing his Japanese name. Green is 's rival and, like Blue, is 's grandson.

In the Pokémon Zensho manga
Blue has a counterpart in the Pokémon Zensho manga named, named after Blue's alternate name from the games and 's Japanese name.

Trivia

 * Hidden data in the Generation I games reveals placeholder names for Blue and :
 * The unused default name for Blue in the English Generation I games is <sc></sc> while Red's is <sc>Ninten</sc>. While it is impossible to view these names during regular gameplay, changing a few es in can allow for these names to appear as shown here. This references the fact that in the years surrounding the releases of the Generation I games, Sony was Nintendo's main competition. Ninten is also the default name of the main protagonist of, a game developed by Creatures, Inc., which has worked on the Pokémon games since the start.
 * In the Japanese Generation I games, the unused default names for Blue and Red differ between and  and then between the latter and  :
 * In Pokémon Red and Green, Blue's unused default name is いしはら Ishihara while Red's is やまぐち Yamaguchi. Ishihara refers to Tsunekazu Ishihara, the current president and of The Pokémon Company and who was the games' producer at the time, while Yamaguchi refers to Wataru Yamaguchi, an art director that worked on the original games.
 * In Pokémon Blue, the unused default names for Blue and Red are, respectively, クリチャ Kuricha, a reference to Creatures, Inc. and ゲーフリ Gēfuri, an abbreviation of Game Freak's name in Japanese (ゲームフリーク Gēmu Furīku).
 * In, Blue's unused default name remained unaltered while Red's was subtly altered by gaining an extra digit (ゲーフリ１).
 * During the development stage of, Blue was initially named ギャラ夫 Gyarao, a reference to him being a Trainer of.
 * Along with, Lance, and the Generation I and Kanto Gym Leaders (excluding Koga and Giovanni), Blue has appeared in generations I-V of the Pokémon games. He is also the only rival with this feat.
 * Blue is the only character that has been a Rival,, and Gym Leader.
 * His English name Blue Oak is the name of a species of . He shares this distinction with his,.
 * Blue's level 60 in  is the highest level Pokémon used by a Gym Leader outside of rematches.
 * Blue is the only Gym Leader who:
 * Shares his name with his Gym's Badge, as the Earth Badge is called the "Green Badge" in Japanese, matching Blue's Japanese name.
 * Uses a full party of six Pokémon in a Gym battle.
 * Does not have a specialty type or a confirmed slogan.
 * In the Round 2 battle of, each of Blue's Pokémon is the signature Pokémon of a Trainer battled at the end of a stage at the Johto Gym Leader Castle: is the signature Pokémon of Bugsy,  is the signature Pokémon of Whitney,  is the signature Pokémon of Morty,  is the signature Pokémon of Archer,  is the signature Pokémon of Pryce, and  is the signature Pokémon of Clair.
 * In Yellow, half of Blue's Pokémon team are evolved by using evolutionary stones. This may be a nod to his starter,.
 * In, if the player chose , none of Blue's Pokémon share a type in the Champion rematch, making him the first Champion with this trait. The only other Champion whose Pokémon don't share a type is Cynthia in.