Incredibly intense and pretty fun matching game. Only real issue is that a small tutorial would be a huge help to players who don't understand the controls. Nonetheless, it had a nice difficulty curve from start to finish, nice music, great art, and a clever concept!
As a notice to anyone else who plays this, here's how it works: You select a tile and are locked to it, then you have to make a pattern of 4 of the same tile connected in any shape (while ensuring you don't make the level impossible by leaving disconnected tiles or anything). When you have a pattern, you have to right click the tiles from closest to the selected tile to farthest (you'll know you're doing this when they get greyed out). After greying out 3 other connected tiles, you'll remove them from the board.