The game had potential, but just ended up going nowhere.
You start in a undersea world, which, at first looks full of opportunity for fun, but in the end, you only end up swimming, eating and fighting. You spend most of your time trying to find fossils, to open challenges that end up not being very challenging at all, and piecing together other creatures, that you can then play as.
After a short-while, the boredom gets to be too much. I ended up playing the game to its conclusion, but I just don't see most people sticking with it that long.
I picked this game up after playing Endless Ocean, which while also dull, had much more going for it. Graphically, the game wasn't as good as I expected. Many times, it was difficult to target an enemy, because they just merged in and out of the cliff face. There were several times when my creature ended up getting embedded in a wall or some other obstruction and I either got lucky and was able to get free, but many times, I just had to reboot and try again.
In the end, I would have to recommend steering clear of this game.