Cheat codes:
At the main menu or pause menu, select the “Cheats” option. Unlock the listed effect by inputting the corresponding cheat:
EFFECT – CHEAT
1 million DNA – cash
AI does double damage and player does half damage – hard
All characters – characters
Energy regenerates – energy
Fourarms alien form – classic
Health regenerates – health
Level select – levels
Rath alien form – primus
Upgrade all alien forms to maximum – upgrade
Fourarms form:
Complete the game to unlock the Fourarms alien form.