There isn't really that much to do in this game. The pluses are that changing monsters dramatically effects game play, which is cool. Unfortunately, that the only major change. The game is swim, swim, eat, fight, eat, swim. I enjoyed this game style, but I doubt most people will. There are a few surface impact glitches here and there but they do not affect game play. At least this game appears to be pretty glitch less and solid. So I did enjoy it and I would say to try this game if you want a different, fun experience that's not too difficult or frustrating. The length of the game is appropriate and can be finished in 4 to 5 hours. Worth the money, but this game has a different feel than most.