The Poké Seer only reports caught origin levels modulo 64 (Pokémon Crystal)

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Published on ● Video Link: https://www.youtube.com/watch?v=kcCaESMRl5Y



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Notes: If you were to catch a Pokémon greater than level 63, the reported levels at the Poké Seer would wrap around. Using arbitrary code execution to make the game think we're in a glitch map (I changed a location byte, probably the group byte to 0xFF) let us catch a Level 222 Forretress. The seer however thinks we caught it at Level 30 (222 modulo 64).

This design flaw doesn't normally come in to play, because the highest level Pokémon (under normal circumstances) are Ho-Oh and Lugia (Level 60) in Pokémon Crystal.

Explanation: https://github.com/pret/pokecrystal/b...




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