Atari 8-bit

Alley Cat

Trivia

To append, the reason it runs on any computer today is, upon loading, the first thing it performs is a mathematical routine to determine the speed of your processor, and we've yet to build an Intel PC too fast to play it.

Alley Cat was one of the few games of the 1980s that was programmed with full attention to different PC speeds. It's an early, old game--yet it runs perfectly on any machine, even a 600MHz Pentium III.