A helicopter, a tiny little man, and a horse-drawn wagon. That doesn't sound like much of an idea for a game, but it's the basis for StuntCopter, a shareware Mac game released by teenage programmer Duane Blehm in October 1986. Blehm released two other games -- Zero Gravity and Cairo ShootOut! -- and updated versions of StuntCopter before his untimely death a few years later. His parents decided to release the games into the public domain, where they have become increasingly difficult to run on current hardware.
But now gamers can once again enjoy the simple-yet-gratifying gameplay of StuntCopter (without jumping through hoops to make it run). The game was ported to OS X by Antell Software in 2004 (get it here; requires Mac OS 10.4 or later), and to the iPhone by nerdgames in 2009.