From BMG Interactive:
Grand Theft Auto is all about maintaining your street cred as a criminal. The local crime bosses send you out on missions ranging from carjacking to kidnapping to drug running. The more missions you complete successfully, the longer you retain and/or advance your criminal status. This special demo version, exclusive for users of 3Dfx graphics acceleration cards, moves the action out of the game's Liberty City setting and into the real-world town of San Andreas. It is optimized for computers with 3Dfx graphics acceleration hardware, includes the first four missions of the game, and a six-minute time limit on gameplay.