It also includes a multitude of other fun stuff, like secret areas, power ups, and insane boss battles. Want to play against your friends? Go for it - it's completely cross platform, with versions available for iOS, Mac, Windows, and the Xperia Play. Check out the vid:
It will set you back $3.99, but that's a small price to pay for the ability to blow things up without going to jail. Go get it now!