Swapper

Swapper is a simple puzzle game where you attempt to match up colored tiles. You "swap" a tile with a tile beside it, and any tiles beside tiles of the same color are removed from the board. You'll need to try to plan your moves carefully so that you won't block yourself from moving the tiles around into matching positions. The game plays well, has decent music, and offers three difficulty levels. Definitely worth checking out if you enjoy puzzle games, since the colors are randomized each time, every play will be different.