I agree with McVenco completely. If you just want to play a game, buy an A500. They're cheap, can be found everywhere and don't need you to use funny tricks to get a certain game to work. Put the disk in your A500's drive and start playing.
Something like an A1200 would be nice if you plan to dive deeper in Amiga-land, but there's no reason to go that route for the occasional game.