Big Bumpin' was the worst out of all the Burger King games
The achievements look like they take a lot of time, but there are a couple that are easy, and you need Multiplayer for some of them. And as with the other two there are only 200 available gamerscore.
The Multiplayer isn't very good either I used it a few times and the only good game type was Icehocky.
I would recommend that you don't play this game.