Unlimited lives and best weapons:
Enter *1NV1S4BL3* as a password to get unlimited lives and the top of
the line weapons.
Enter *S3L3CT0N* as a password. Return to the password prompt, then
enter *SH0WT1M3* as a password.
Enter *SP33D* as a password to make your ship move faster.
Enter *G4LL3RY* as a password.
Enter *CR3D1TS* as a password.
Level Password Alternate 1 Alternate 2
2 N1PBBDG8V QQPBBYGYV Q8QBBYQ6V
3 XG#BVMVFW GP4BVD6RW 439BBP6LW
4 85DCVLQVC 4GKCVDLZC
5 GNWCVBGMD 6PXCBCVBN
6 SP2CBBV8J N93CVBG8J