Press [Enter] during game play, then enter one of the following codes.

Effect Code

2D players - turnpunchkick
Large torsos when - breathing 1-900
Very big heads - meganoggin
Big heads on all characters - bignoggin
Full ammo - 5fingerdiscount
Toggle victory conditions - explore
Disable AI - nobrainer
Stumpy characters - stumpy
God mode - teamgod or avatargod
Large feet and hands - clodhopper
Activate debug keys1 - debugkeys

1. Once this code is active, the features in the "Debug commands" section below may be used.

Hints:

In the jungle mission, you've got to be both utterly cautious when moving and lightning fast when targeting or shooting; otherwise, you're dead.

Pistols are great when you're in really tight quarters. They're the quickest weapons to aim and they have stopping power at close range.

On the Arctic mission, the wide-openness of the level is sniper heaven. Let your snipers have fun