I haven't got any problems with it, it's available on alot of sites though...

the game is pretty 'basic', unlike other games with 2501 different moves, this one has fire, zoom, jump, crawl, sneak, ... just the basic moves...

in the beginning it might feel weird, but as soon as you've got it, it's easy and fun.
oh yeah, maybe I should give you some extra notes:

check yer PM