Glitched Pokémon Center (Generation III)

The Advanced Generation Glitched Pokémon Center is a cheating device glitch where someone tries to heal their Pokémon when they have none.

In Pokémon Red/Green/Blue/Yellow when the player attempted to heal at a PokéCenter with no Pokémon, glitch blocks would cover the screen corresponding to Pokéballs beyond the sixth slot and the game would either reset or became a Pokémon Center version of Glitch City. The same effect also occurs in Pokémon Ruby/Sapphire/Emerald/FireRed/Leafgreen, but instead of glitch blocks appearing actual Poké Ball sprites are used, causing no Glitch City like effect.

Procedure

1. Start a new game.
2. Have a walk-through-walls code on.
3. Walk to the Pokémon Center without getting a Pokémon or battling a Pokémon (without having the "Max Stats" code active.)
4. Enter the PokéCenter and heal your Pokémon.

Pictures

Ruby/Sapphire:

Fire Red/Leaf Green:

Emerald: