Shaky shots take away from the potential of the visuals in the film. The lack of the tension and richness of the books really takes away from the story. If there had been less action shots and more backstory this film would've ended up being much more memorable. Despite its flaws it is still very entertaining to watch. I must comment, it is not a ripoff of Battle Royale (great film by the way)- it's just a different take on a similar concept.