I bought this out of a nostalgic feeling. I'm not regretting it. This really is a great game. Really hard too, if you're used to modern games ;)
I always played the demo as a kid (had to to that behind my parent's backs or it wouldn't last :P). To have this game now is a great moment of nostalgia. It doesn't work with ATI drivers higher than 10.4 but can be fixed by placing the file atioglxx.dll from the 10.4 drivers in the directory of the game.
