Nice concept, but very frustrating to play.
This game is very well done, but it requires a lot of patience to play. I've played loads of times, but I can't get much more than about 1500 points before I get eaten. It's very annoying.
If you could somehow make it so that there are more small fish and less big fish towards the start, or have a health meter so you don't get game over for just one mistake, it'd be a lot more enjoyable to play.