Worked on stabilizing core gameplay mechanics in the rh-hideout/pokeemerald-expansion repository, focusing on resolving a persistent issue with roaming Pokémon HP across repeat encounters. Addressed a bug where roaming Pokémon would incorrectly retain zero HP after battles, which previously led to inconsistent player experiences during exploration. The solution involved targeted C programming to reset and manage HP states reliably, aligning with established roaming state management practices and existing test coverage. This bug fix improved the maintainability of the codebase and enhanced the reliability of roaming encounters, drawing on skills in bug fixing, C programming, and game development to support ongoing expansion efforts.