Pokémon Crystal Version/Changes from Pokémon Gold and Silver/Gameplay Changes


 * and can only be caught after completing the game and reaching Kanto. They are both at level 60.
 * Ho-Oh can be caught after, , and are all caught and Eusine is spoken to in Celadon City.
 * Lugia can be caught after obtaining the Silver Wing in Pewter City, like in Pokémon Gold.
 * Changes have been made to the Ruins of Alph. This includes more common, as well as a new subplot&mdash;completing enough puzzles allows the player to read a secret message left behind by the Unown. It suggests that the Unown were left behind by the ancient civilization that constructed the Ruins of Alph, and that the statues that line the interior were made by those people.
 * Trainers who call the player on the cell phone now have distinct personalities (one talks about shopping, another about grooming etc.), and call for reasons other than battling, such as giving the player items, or informing them of a rare Pokémon appearing (Wade gives the player Berries, Alan gives them a Fire Stone, etc.). In Gold and Silver they all say the same phrase, with only the names of the Pokémon they reference changing.
 * A new radio show, Buena's Password, has been added. Players can listen out for a password on their Pokégear radio and tell Buena the password to receive points, which can be spent to redeem prizes.
 * The function to reset the clock in non-Japanese and non-Korean versions of Gold and Silver remains, although it is now more difficult to access.
 * On the title screen, the player must first hold the ↓, SELECT, and B buttons.
 * While holding SELECT, they must release ↓ and B.
 * Still holding SELECT, they must now hold ← and ↑.
 * Finally, the player must release SELECT.
 * Kurt can now make multiple Balls from same colored Apricorns simultaneously.
 * The Odd Egg can be obtained from the Day-Care Man after speaking to him for the first time.
 * Some Pokémon have changed level-up movesets; however, all of them have only one change.
 * Some bugs with the battle mechanics were fixed; however, the game performs a check when it detects a Link battle to use the older and buggy mechanics in order to maintain compatibility with . This occurs even between linked players of Pokémon Crystal games.
 * Likewise, the game also performs a check that partially converts Kris into at the Cable Club and Time Capsule rooms, even if all the players using the Cable Club rooms are specifically playing Pokémon Crystal.
 * A Pokémon's friendship can be increased more effectively by training in the same location where the Pokémon has been caught or hatched.