Press A, B, Y, X on controller two during game play. Press A on controller one to display a cheat number in the top left corner of the screen. To change the cheat number, press A on controller two to toggle invincibility, B on controller two to toggle no damage, or C on controller two to toggle unlimited weapons. The cheat number corresponds to the following status:
1 – Invincibility
2 – No damage
3 – Invincibility
4 – Unlimited weapons
5 – Unlimited weapons and invincibility
6 – Unlimited weapons and no damage
7 – All cheats activated
Press C, Up, Right, Down, Left, A, Right, Down on controller two at the options menu. A sound will confirm correct code entry. Pause game play and press C, A, B or C + A + B. A green flame around the screen will confirm correct code entry. Resume game play to advance to the next level.
Enter ENDGAME as a password.