Well, I played this game for 20 minutes and was not able to defeat the dummy. Partly because I'm colorblind and got the green and red stars and stones mixed up, partly because the mechanics are really confusing.
It looks like tetris on it's side and you have to match stars with stones to make them dissappear. Throw some skulls in the mix and you are able to push a line towards your opponent, and if you do this good enough you win. This mechanic really stinks and is NOT FUN.
Graphics are sub-par and cheesy, the sound and music is average. Story is non-existent.
So after this little bit of game I archived the game never to be played again. Lots of better puzzle software to play.