Snowboard Kids 2 Hits 100% Decompilation After Two-Year Community Effort

Chris Lewis has completed a fully matching C decompilation of the N64 game Snowboard Kids 2, meaning every original function now has a C implementation that compiles to byte-identical assembly. The roughly two-year project converts an opaque MIPS binary into a readable, modifiable codebase, opening the door to recompilation, asset extraction, modding, and deeper analysis of the game’s internals. Some targeted asm directives remain to preserve exact register usage, and much of the code still needs better naming, documentation, and structure cleanup.

Lewis credits the N64 decompilation Discord community as the decisive factor, naming several contributors who helped close out the final functions. He also notes that frontier coding agents materially accelerated the work, with Codex 5.5 xhigh proving most effective on the hardest remaining functions, while GLM offered the best cost-to-performance ratio for hobbyist budgets. Next steps include shipping a polished recompilation (already well underway with collaborators), cleaning up names and structures, treating graphics and audio as more than binary blobs, and potentially starting a Snowboard Kids 1 decompilation aimed at a combined ‘Super Snowboard Kids’ build.