Nascar Rumble Game System: Sony Playstation Cheat Category: Cheat Game Company: Unknown Game Category: Unknown Hint, Cheat, Walkthrough:   Nascar Rumble ============= Submitted by: Chris Moore (grimreper56@yahoo.com) Unlock Everything! To unlock everything simply go to the password screen(game options memory card then press < or >)and enter the password KMZWA8AWAA