Evidence at a glance
Based on the linked sources. The author's reported result and independent confirmation are separate checks.
- AI involvement
- Reported models: Claude. Tools: Ghidra, REA, 3DS Decomp Pipeline. The writeup below describes the work attributed to AI.
- Reported result
- Partial. This is the directory's source-based outcome classification.
- Independent confirmation
- Not reported.
- Human work and limitations
- The project emphasizes that while a bootable hybrid build is possible, it is insufficient; compiled replacements must be explicitly selected and verified against binary evidence.
Original sources
What was done
UltraSunnyMoon is a research project aiming to create a readable, rebuildable codebase for Pokémon Ultra Sun. It has achieved verified, controllable bedroom gameplay in a rebuilt environment using behavior-tested C replacements.
UltraSunnyMoon is a public reverse-engineering and decompilation project for Pokémon Ultra Sun. The project aims to produce a readable, rebuildable codebase with independently verified replacements for original game code. The author reports that original and combined rebuilt games now reproduce controllable bedroom gameplay, with the same input movie advancing both through player setup and directional movement. Live BSS and constructor replacement bytes, as well as rendered frames, have been verified. The project utilizes a pinned REA source revision with Ghidra for analysis. While the project has achieved behavior-tested C reconstructions, these remain nonmatching, and no reconstruction completion percentage is claimed. The author notes that AI-assisted reconstructions require review against binary evidence and meaningful verification. Claude is credited as a co-author for work including the resolution of named imports against static exports, which involved the creation of survey, resolution, and verification tools alongside synthetic regression tests. Further details on the project roadmap and technical direction are available at UltraSunnyMoon.