This game is brilliant, way better than "6.8."

User Rating: 9 | Marble Blast Ultra X360
The level designers of this game deserve medals. The creativity of all the arenas is unmatched, and make them fun to roll around in. The controls are spot on once you get used to them, making it easy to finish the levels. At least, if you're playing on easy or intermediate. The advanced levels are nigh impossible, taking several tries and much patience. Still, it adds to the replay. The sound is also good, sporting one of the few theme songs I don't mind listening to over and over and over. The rolling, thudding, and power-up sounds are spot on, and I noticed no need for changing effects.

This is the only full XBL arcade game I own other than Hexic HD, and I see no need for any others. This is as deep, fun, and enjoyable as a full retail game, and it costs much less.