Enter "*S3L3CT0N*" as a password. Then, enter "*SH0WT1M3*" as a password.
Enter "*1NV1S4BL3*" as a password to get unlimited lives and the top of the line weapons.
Enter "*G4LL3RY*" as a password.
To start at an end level Boss, enter the "Game Options" screen and highlight the "Start Level" selection. Select a level, then highlight the "Start At Boss" selection. Choose "Yes", then "Ok" to go to the Boss fight for that level.
Note: There are more than one password for each level. Each password has different weapons and lives.
| Password | Alternate 1 | Alternate 2 | |
| N1PBBDG8V | QQPBBYGYV | Q8QBBYQ6V | |
| XG#BVMVFW | GP4BVD6RW | 439BBP6LW | |
| 85DCVLQVC | 4GKCVDLZC | ||
| GNWCVBGMD | 6PXCBCVBN | ||
| SP2CBBV8J | N93CVBG8J |
