To use these cheats, you must enable the cheat mode:
1. Enter the select difficulty level screen
2. Press TAB+CRTL
3. Enter the select player screen
4. Type ROBISAGOD

During gameplay, type in these codes:
BEAGLE - God Mode
KICKASS - All weapons
GIVEBLOOD - Get blood
RESCUE - Rescue hostages
GETMEOUT - Warp to next level
INFRARED - Display hidden ares
GEEWHIZ - End game scene

Easter Eggs:
To play the secret character, Agent Squiggly, type SQUIGGLY at the select player
screen and press the up arrow.