- OPEN ALL SECRETS:
AT OPTIONS SCREEN, PRESS UP, DOWN, UP, DOWN, LEFT, RIGHT, LEFT, RIGHT, SELECT, START, SELECT, START, SQU, O, SQU, O, X, X, START.
- INVINCIBLE:
PAUSE GAME, AT CONTROLLER MENU, PRESS DOWN, X, SELECT, START, RIGHT, SQU, LEFT, O, UP, TRI.
- ALL UPGRADES:
PAUSE GAME, AT CONTROLLER MENU, PRESS UP, LEFT, DOWN, RIGHT, SELECT, START, SQU, X, O, TRI.