During Gameplay, pause the game, and input the following codes: Code Effect Left,right,down,up,left,right. Alternate Costume. Up,up,left,right,up,down,left. Big Heads. Up,up,down,down,left,right. Extra Credits (16,000). Right,right,right,up,down,left. IFF Glow. Up,right,right,up,up,left. Low Gravity. Up,down,left,right,down,up. No Clipping Mode. Left,right,right,left,up,down. No Target Mode. Down,down,down,down,up,up. Toggle Auto-Aim. Passwords Profile Easter Eggs Rename your profile as follows: (THESE ARE CASE-SENSITIVE!) Password Effect !!UNDONE!! Makes most of the text in the game very shaky PlumRugOfDoom Makes the terrorists at Prodigy have a purple streak in their hair.