Unlimited Health

• Enter the code "Health" for unlimited health. You can now fight the giant crab without taking any damage whatsoever.
  
  

Unlimited Force Fields

• Force Fields, when activated, make your submarine invincible for a brief period of time -- but you are limited to only three Force Fields per game. Unlock unlimited Force Fields with the code "Force."
  
  

Rubber Chickens

• Replace your submarine's torpedoes with rubber chickens with the code "Chicken." While this has no affect on gameplay, it does add a bit of variety and humor to the game.
  
  

Flatulent Torpedoes

• Using the code "Beans" causes your torpedoes to unleash flatulent gas after firing. This has no affect on gameplay other than adding to the humor and variety of the title.