F-Zero X on 3DS: An AI-Orchestrated Development

A solo director leveraged a long-running Claude AI session to orchestrate subagents in porting the F-Zero X decompilation to Nintendo 3DS. The project unfolded in two phases: a 24-day sprint bringing the game to New 3DS at 60 fps in stereoscopic 3D, followed by a 43-day effort extending support to older 3DS models and adding the 64DD Expansion Kit for course and machine editing.

The release includes three bootable builds that load from the Nintendo HOME menu without ROM files. Both console versions support the full game—Grand Prix, time trials, practice, death races—with stereoscopic 3D, DSP audio, and a bottom-screen dashboard. The New 3DS maintains 60 fps; the Old 3DS achieves comparable performance through a custom interpreter optimized for instruction-cache efficiency on its 268 MHz processor.

The port overcame 64 MB memory constraints, built a citro3d rendering backend, and demonstrated how AI-coordinated agent workflows can tackle large-scale systems engineering. The initial phase alone involved 147 subagents contributing to the effort.