Cheat mode
At the main menu or pause menu, select the "Cheats" option. Then, enter one of the following codes to activate the corresponding cheat function:

Result Code
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