- OPEN ALL SECRETS:
AT OPTIONS SCREEN, PRESS UP, DOWN, UP, DOWN, A, START, X, START, Y, A, Y, A, X, X, B.
- INVINCIBLE:
PAUSE GAME, AT CONTROLLER MENU, PRESS DOWN, A, UP, Y, START, START, RIGHT, LEFT, X, B.
- ALL UPGRADES:
PAUSE GAME, AT CONTROLLER MENU, PRESS UP, LEFT, DOWN, RIGHT, START, START, Y, A, X, B.