At the menu select screen, press one of the following for the desired affect. Only one code can be used at a time.
| Effect | Code
|
|---|
| - A, B, C, A, C, A, A, A, A, A.
|
- All weapons and invincible
| - A, B, C, A, C, C, B, B, A, C.
|
| - A, C, B, B, A, A, C, C, B, C.
|
- Start with 4 extra credits
| - A, A, B, B, C, C, A, B, C, B.
|
