Definitely a classic for the Apple IIe.....
Anyway, Karateka was a very simplistic journey through a Japanese landscape where you used your karate kicks, jumps and punches to attack your many enemies. Once I got the hang of it, I found that it was pretty easy to defeat the entire game (even the big enemies), but that didn't take away any of the fun of the game, even though I was playing on a plain old, green monochromatic screen.
Karateka definitely brings back some good old memories, so it'll always been a classic game for me, and I'd love to see it come back in some other game compliation for the PS2.