Viridian City/Manga/Pokémon Adventures

Viridian City first appeared in Bulbasaur, Come Home!, where and  were forced to chase some of the Pokémon that Red had accidentally set free from Professor Oak's Laboratory all the way to Pallet Town's neighbor city, including a Bulbasaur, which the two chased to the abandoned Viridian Gym. After Red had helped Bulbasaur to defeat a wild attacking them, Professor Oak chose to give Bulbasaur to Red, along with a Pokédex.

Viridian City made a brief appearance in Make Way For Magmar!, where local citizens were asking questions about the missing Gym Leader.

Red revisited Viridian City in Drat That Dratini! after helping a in Viridian Forest. Upon hearing rumors about the missing "invincible" Gym Leader, Red decided to check out the Viridian Gym again. At the Gym, he met, learning that not only was he the Viridian City Gym Leader, but also the leader of Team Rocket. Giovanni then challenged Red to a battle, making a bet with him that should Red lose, he'd come to serve him as his right-hand man. During the battle, Giovanni's 's caused the Viridian Gym to collapse into ruins. Eventually Red emerged victorious with his Pika defeating Giovanni's and knocking the Gym Leader himself unconscious as well.

In Forretress of Solitude, Red participated in Pokémon Association's Gym Leader test for the new Viridian Gym Leader at the reconstructed Viridian Gym. Although he passed the test with flying colors, Red had to turn down the offer, as he had not yet completely recovered from the frostbites he received after being frozen by Lorelei in the. As such, was appointed as the new Gym Leader instead, after he impressed the Pokémon Association by stopping and  a group of rampaging wild Pokémon.

In Secrets from Sneasel, arrived in Viridian City to meet Blue at the Gym, but only found his hologram, set there in case for a challenger coming while he was not present. An automated system then brought out Blue's Pokémon, which, even without their Trainer giving them commands, easily defeated Yellow's Chuchu in a battle. soon arrived at the site as well, looking for his roots. Unexpectedly, the two were attacked by Sird and Orm of Team Rocket, who revealed that Silver was actually Giovanni's long-lost son. This revelation shocked Silver so much that the two Team Rocket members had no trouble in knocking him out and taking him to the Team Rocket airship, with Yellow giving chase.