Quick simple fun you've come to expect and enjoy from XBL Arcade
While there's no multiplayer mode online, the leaderboard takes care of some of that for you. I know that I myself was playing one song over and over to get into the top five, and that helps add some replay value.
The song list right now is short, and i was hoping for a bit more bang from my 800 points. However, with the hope of downloads coming in the near future, BBR has the potential to be a strong entry into the XBL arcade.