SNES Cheats: Super Mario Kart Cheats

Reset Race Times
At the chosen time trial, press L + R + Y + A.

Reset All Saved Data
At the Title screen, press L + R + Y + A.

Turbo Start
As the last light starts to dim, hold B.

Special Cup Tracks
Select Time Trial Mode, choose a racer and press Left to highlight the Mushroom Cup. Now press L, R, L, L, R, R, A.

Mini Racers
Select Mario Kart GP Mode. Then at the Character Selection screen, hold Y and press A. Or, highlight a character and press A + B + X + Y.