Start the game, press Escape and press the tilde key (~) to open the console. Then enter one of the following codes.

Code	Effect
G_Godlike	Take no visual damage.
G_IgnoreLocks	Unlocks everything.
G_Money (x)	Give you (x) amount of money.
G_Rubberbanding	Enables/disable rubber banding for AI.
G_Score (x)	Change your score by (x).