Cheat mode:
Press A, Left, Up, C, A, Right, Down when the word "Beware" appears on the opening screen. The screen border will turn white to confirm that cheat mode is enabled.

Unlimited lives:
Enable cheat mode. Then, hold A and press Start(2) during game play for 99 lives. This code may be repeated as needed.

Level select:
Enable cheat mode. Then, enter one of the following controller actions to start at the corresponding level.

Level	Code
1	Hold C and press Start.
2	Hold B and press Start.
3	Hold B + C and press Start.
4	Hold A and press Start.
5	Hold A + C and press Start.
6	Hold A + B and press Start.
7	Hold A + B + C and press Start.