Carrier Command

Cheat Codes:
------------
Pause the game and type 'THE BEST IS YET TO BE'.  
Now, press the plus key on the numeric keypad. 
The mantas and walrus' will be invulnerble except 
to crashing (low altitude).

Or try surrending and press the + and - keys to 
cycle all through all the objects in the game.

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.