i agree with slayer1029
This kind of game has been done probably hundreds of times before, and this version does nothing to distinguish itself from all the others. The gameplay is almost identical, its a bit buggy (sometimes the marbles bounce off the bottom debris and just explode), and in the end quite boring. The gameplay was sluggish and did nothing to keep the player entertained.
Maybe have a few less colors for the first level, and come up with something to separate the game from the competition.