One of the best puzzle games I've ever played.
Basically, there is a pattern of different marbles, and you're trying to get rid of them all by shooting marbles at those marbles.
When three or more marbles of the same color are connected, they dissapear. This may seem simple at first, but every level gets a little more challenging.
If you are like me, and only play a few puzzle games you should be prepared to lose a lot in this game, but the difficulty of this game makes me want to keep trying at a level, dispite how hard it is. Which would've probley have put a lot of quarters in the arcade version.
But, the SNES version still has enough depth for it to be a good SNES game, even though it's a port of an arcade game.
So, go buy a version of this game (except the Wii one, I heard it sucks), it's on most systems from the SNES and to newer consoles.
-Lickpoop