Code Effect Display Secret Passages At the title screen use controller 2 and press Left, Left, Left, B, B, A, A, A, A, Right, then press start on controller 1.
Contributed By: Buckwheatz Revenge.
At the title screen, press Left, Right, A, B, A, Down, abd Up on Player 2's controller, then hold A on Player 1's controller By pressing the Select Button, you can select the desired level.
Contributed By: KeyBlade999.
At title screen, press B, Down, Up, A, Left, Left and Right on the 2nd controller. Now, during the game, press or hold Select to move frame by frame.
Contributed By: ReyVGM.
Secret Ending Message
If you can finish Mission 4-4 with 3 lives remaining and 24 grenades remaining, you get a secret message from the programmer after the usual ending message.
Contributed By: AdamL.
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