Three NTSC N64 ROM hacks patched to run on a PAL console
Claude Code disassembled three US-only N64 ROM hacks and patched in PAL video timings, 50 Hz audio and clock fixes so they run on a European N64.
Credits
- Reddit poster RecordingTechnical86 Source ↗
Earliest dated source:
The full story
The poster gave Claude Code a folder holding Super Mario 64 Splitscreen Multiplayer, Mario Kart 64 4-Player Grand Prix and Smash Remix 2.0.1, and asked it to make them work on a real PAL N64. Claude read the ROM headers, disassembled the game code with Capstone and found where each game picks its video mode, which on a non-US console fell back to a mode that gives a black-and-white or rolling picture on a PAL TV.
It patched in proper PAL timings from tables already inside the ROMs, fixed the sound for 50 Hz using the official European release as a guide, corrected Mario Kart's race timer, and removed a deliberate region lock in Smash Remix.
How it was done
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Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: I asked Claude Code to make three US-only N64 ROM hacks work on my European PAL N64. It reverse-engiReddit poster: RecordingTechnical86Posted
The maker's post on r/ClaudeAI.
If it disappears: archived copy of Reddit: I asked Claude Code to make three US-only N64 ROM hacks work on my European PAL N64. It reverse-engi (opens in a new tab)