Level select:
Enter ‘Commander*Jeffer’ as a password.
Unlimited primary weapon power:
Enter ‘Tranquillex’ as a password.
Unlimited secondary weapons:
Enter ‘Memo*X33RTY’ as a password.
Unlimited shields:
Enter ‘Hestas*Retort’ as a password.
Get All Endings:
Enter ‘zX7z15EEvLax7Q0N’ as a password.
Disable all cheats:
Enter ‘All*cheats*off’ as a password.
GameShark Codes
Energy Weapon 80119c4c0000 Never Overheat 80119c800000 80119cb40000 80119ce80000 80119d1c0000 Infinite Missiles80119cc00001 First Position Infinite Missiles80119d5c0001 Forth Position Infinite Missiles80119cf40001 Second Position Infinite Missiles80119d280001 Third Position Infinite Shields800463b400c8
Thanks to Revolution readers Dillhead and Aaron Roberts!