"Banana Stops" cheat mode
Press Pause, Option, 6, 1 + 3, then release those buttons. Then, press B, A, 9, A, 9, A, *, Option, 6, #, *, *, Option, 2, Option. The Predator will laugh to confirm correct code entry. In addition to the "Hold that Fuji!" codes, the following codes may also be activated.
Level select
Press Option + A to jump to the next level or Option + B to play the previous level.
God mode
Press Option + 5 for invincibility and full weapons.
Shotgun (as Marine)
Press Option + 1.
M14-A Pulse Rifle (as Marine)
Press Option + 2.
Flame Thrower (as Marine)
Press Option + 3.
Smart Gun (as Marine)
Press Option + 4.
Refill Ammo (as Marine)
Press Option + 1 + 2 + 3 + 4.
Motion Tracker (as Marine)
Press Option + 8.
Raise Security Level (as Marine)
Press Option + 6.
Lower Security Level (as Marine)
Press Option + 9.
Combi Stick (as Predator)
Press Option + 1.
Shoulder Cannon (as Predator)
Press Option + 2.
Smart Disc (as Predator)
Press Option + 3.
Wrist Blade (as Predator)
Press Option + 4.
Tail Attack (as Alien)
Press Option + 1.
Claw Attack (as Alien)
Press Option + 2.
Extending Mouth (as Alien)
Press Option + 3.