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F-Zero X Ported to Nintendo 3DS at 60 fps

Hacker News •
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A post-mortem describes porting G-Diffuser, the F-Zero X decompilation, to the Nintendo 3DS in version 1.0.0. The project covers two phases: an original 24-day sprint that brought the game to a New 3DS running at 60 fps in stereoscopic 3D, and a 43-day second phase that added Old 3DS support, a native renderer, and the 64DD Expansion Kit. One person directed the work throughout, with one long-lived Claude session orchestrating and 147 subagents building the first phase.

On hardware, the first phase reached a median of 59.6 fps for a full Grand Prix on a New 3DS, up from 12 to 20 fps in the first emulator race. The tenth-percentile floor in 30-machine crowds rose to 51.4 fps, and 53% of frames hit the 60 fps cap, compared with 14% one week earlier. The first phase ran across 15 active days over 24 calendar days, with three pauses when the weekly plan allowance ran out.

Cost figures cover the first phase only. The project used 3.17 billion tokens across all sessions and agents, which comes to $4,974 at published API list prices. The post-mortem notes that these numbers were measured through 2026-09-03 and have not been re-run for v1.0.0.

Version 1.0.0 ships three console builds from one source tree: Old 3DS, New 3DS, and New 3DS with the Expansion Kit. All builds read prebaked asset archives from the SD card, so no ROM or disk image ships with the game. The release includes Grand Prix, Time Trial, Practice, Death Race, the machine editor, stereoscopic 3D, and clean HOME suspend and resume behavior.

Source: Hacker News · Summarized by HeadlinesBriefing