Good but grows boring too fast...
It was enjoyable for the first 30 seconds or so... A little more diversity would make this much more fun... Different types of bombs, powerups.... I think it'd be cool if the marshmellow thingy grew bigger with every orb it touched (added to its own mass), just something to keep people playing the game. Music/background changes every 1000 points or so would also help.
Still, good job.