Type these codes at the Main Menu…

XCLASS		Activate Phantom Class
XTEAM		Activate Piranha Team
XTRACK		All Tracks 

Type these codes while the game is paused…

PSYMEGA		Infinite Weapons
PSYTICKER	Infinite Time
PSYPROTECT	Infinite Energy
PSYRAPID	Infinite Machine Gun

Thanks to Revolution readers Christine, Tadej, and Sean Gush!