February 29, 2020, 12:08:24 am
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(hex:A0) is a glitch item in Pokémon Yellow. It is an unterminated name glitch item and a Rival's effect glitch item.
Its name may be taken from the available characters on the New Name screen.
When a 0x50 sub-tile is early on the screen, this glitch item functions as an evolutionary stone but the Pokémon which are compatible with it are unknown.
Otherwise, without suitable screen data this glitch item may cause the game to freeze.