Graphics :(
while fun, I found the graphics to get in the way of the gameplay. there's too much grey on too many characters. when you start scanning the board many of the pieces look the same.
Also, there's no real point in getting big combos. perhaps activating a special attack when 4 or 5 are matched would have helped improve gameplay.
upgrades are okay. maybe allowing individual stats to be improved could help add strategy to the game.
Also the game just feels short.
fix/improve these things and you could have a good addition to the bejeweled style game.