2 to 3 hours is all you need to get the 1000 easy gamer score out of this game. The camera positioning is pretty bad on the platforming sections so I didn't even let my 7 year old try the game before sending it back.
Game play is ok and mercifully, there are no collection achievements in this game. A great one day rental.
This game was linear and repetitive, but it was fun to play. It took me about 3.5 hours to complete and receive 1000G. There are challenges that you unlock, but if you're just playing for the gamerpoints, they aren't necessary.