ItemDex/Y:114

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Name (transcribed): #Q;MP-

Identifier (HEX): 72
Identifier (DEC): 114
Effect pointer: 1BCD
Unterminated name glitch item?: No
Tossable/Sellable?: No
Buy Price: 859280 (7#8#80)
Sell Price: N/A
Name bytes: {{{9}}}

(hex:72) is a glitch item in Pokémon Yellow. Its name is taken from the untranslated string "プチマスター" (Petit Master) from the Japanese versions, resulting in mojibake.

Although this glitch item's effect pointer is sourced from the ROM, using this glitch item will result in a range of behaviors that are not well understood, however its pointer is in the middle of VBlankCopyBgMap, which is supposed to be run from the start at 1BB5, will pop de (touching the stack) and may execute an unintended pointer from the stack.[1] If for whatever reason the program counter lands in RAM, it is technically possible to perform arbitrary code execution but there is no definitive method as of present.

Some of the effects include game freezes, and rarer effects such as (but not limited to) continuous changes to the memory addresses nearby the items pack (example).


References

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