Carrier Command Codes -

Cheat mode:
Pause game play and type the best is yet to be to enable cheat mode.

Invincibility:
Enable cheat mode. Press [Keypad Plus] to enable invincibility for the Mantas and Walruses. Note: They may still be destroyed by crashing at low altitude.

Object viewer:
Enable cheat mode. Surrender and press [Plus] or [Minus] to display all objects in the game.