Press ENTER next to the number pad to bring up the Console and enter these cheats. Press Enter again to activate them.

• god mode: superman
• Commit suicide: god
• Infinite Ammo: ammo
• Invisibility: shadow
• Paintball Mode: extremepaintball
• Refill inventory: refill
• run faster: run
• Specialist unlockhero
• Specialists: unlockheros
• Squirrel Launcher: squirrelkite
• team god mode: teamsuperman
• Team Invisibility: teamshadow
• Win or lose current mission: autowin/autolose
• Chicken grenades: chickenrun