Press the tilde key "~" to bring down the console and enter the codes
below. Some have to be entered every time you finish a level.
Code Effect
arnold_for_president 1 Invincible. keep_cool 1 Never heat up. richman n Set the amount of money you want to n. veni_vidi_vici Win the level. power_to_the_people 1 Your weapons deal four times the damage.