Geometry Wars Galaxies the kind of game that you're not sure whether to buy at first, but never look back once you do.
The levels in this game are so well designed that each level is better than the last. This is probably the key to why this game is so addictive.
The only bad thing I can think about this game is that presentation is a little poor. But that does not affect the amazing gameplay that is infused with this game.
The multiplayer in this game is a bonus. The controls are right on so no frustrations will be encountered. Also, the fact that you can download a demo of the game onto your DS from the Wii makes this game solid. If you're not sure whether to spend $40 on this game or not, do yourself a favor and buy this classic game. You will not regret it.