Native 16:9 and 21:9 aspect ratios replace the stretched or letterboxed output of the original 4:3 format.
If you want to get started setting up your own version, let me know: super mario 64 optimized rom
: While the original game often dropped to 20 FPS in complex areas, the optimized version achieves a smooth, consistent 30 FPS on original N64 hardware. Rendering Speed : The new code renders up to six times faster than Nintendo’s original implementation. Code Overhaul : Developers examined and edited roughly 100,000 lines of code Native 16:9 and 21:9 aspect ratios replace the