Addicting fun, the Zuma of the seas.
As the levels progress you get more and more abilities, turning a simple game into a more complex and strategic game. The powerups and all the different fish add to a fun experiance, and kind of gets you excited to get to the next level. The only gripes would be the amount of levels, about 50 I believe, and there are not enough abilities, just the ability to suck up fish.
While at some points this game can get frusterating, you can always learn, and it is a great family game. Even people who don't play games will enjoy this. The demo is great, but it really only shows you a glimpse. The new characters and powerups are all in later parts of the game. If you want achievements, the achievements in this game are very fair, but not overly easy to get. Hope you consider this game, most of you won't be dissapointed.