Stages 1 and 2 optimized cornering
Stage 3 uses a most optimal route possible
Stage 4 abuses the routing system to get an impossibly fast time to max out the money
Stage 5 skips some of the track to finish the story
First credits sequence can be skipped with a soft reset (A+B+Start+Select)
Save file for Zero Test: https://www.mediafire.com/file/3xwbp5hd3fj9cw6/F-Zero_-_GP_Legend_%28USA%29.SaveRAM/file