FLASH GAME: MOON PATROL This is a classic arcade clone of a retro-style game. Moon Patrol involves driving a moon buggy across, yes, the moon. Avoid obstacles and watch out for the attacking UFOs. Read more about the history of Moon Patrol at Wikipedia.
Those creators who did tributes to their favorite old-school arcade games in the form of game clones have done a service to us all. Otherwise I'm not sure there would have been commercial interest in selling those self-contained consoles (like at Best Buy or Fred Meyers) that have all of the old Atari Games. And certainly GameTap, the arcade site you pay a subscription fee for, came about because of interest in old games and the number of classic clone tributes put out on the web. So who says cloning is bad.