Aliens vs. Predator: Extinction Cheats

Cheat mode:
Press Start to pause your game in a campaign, then push R1(2), L1, R1, L1(2), R1, L1, R1(2), L1, R1, L1(2), R1, L1 and you will unlock the CHEATS prompt in the options menu. The cheat options include "Toggle Unit Spying", "Cheat Win", "Gimme $10000", "Show LZs", "Player Invulnerable", "Enable All Levels", and "Clear Fog Of War". Alternately, get the all gold medals in the game to unlock the same options.

Earning Credits:
You can earn credits by killing enemies and repairing Atmos [atmospheric processors]. Only the Commtech can repair Atmos.
User Cheat by Brody

Seeing cloaked Predators:
The Synthetic and a DEPLOYED Sentry Gun can detect moving objects that cannot be seen, such as cloaked Predators.
User Cheat by Brody

Super Predaliens:
First upgrade a Predalien. Then send the Predalien into battle but keep it away from fire. Each Time it comes out alive it will gain 20HP making a Predalien with lots of HP
User Cheat by Brody