- STAGE SELECT:
AFTER GOODIES OPTION CODE, AT PRESS START SCREEN, PRESS LEFT, RIGHT, X, TRI, LEFT, UP, IN 3 SECONDS.
- NAKOMI MODE:
AT PRESS START SCREEN, PRESS UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, X, O, IN 3 SECONDS.
- BIG HEAD PLAYER:
AT PRESS START SCREEN, PRESS SQU, O, O, SQU, UP, SQU, O, O, SQU, TRI, IN 3 SECONDS.
- BIG HEAD ALIENS:
AT PRESS START SCREEN, PRESS SQU, O, O, SQU, UP, SQU, O, O, SQU, X, IN 3 SECONDS.
- TURBO MODE:
AT PRESS START SCREEN, PRESS X, SQU, TRI, O, X, SQU, TRI, O, L2, R2, IN 3 SECONDS.
- SEPIA GRAPHICS:
AT PRESS START SCREEN, PRESS LEFT 10 TIMES IN 3 SECONDS.