Needs work
It's a pretty detailed game, but it does need some work - stop making square boxes around the jellyfish - they need to be taylored to the shape of the jellyfish itself. Perhaps have them move around and give us more of a challenge, as having them floating around in mid air is unrealistic, unless you are underwater, in which case squidward should be able to swim.
Try working on finding some more detailed sprites, as this is a major difficulty, which can be dealt with some way. Google can certainly help with this, but other than that, the flash forum might be able to help you as well.
Sorting out the main issues with the mechanics and the animation will really bring this game forward - it will make the levels more enjoyable and the whole experience more addictive.
A good choice of music, but I would suggest that you have a musical menu, as this would assist the variety of players that you may get.
[Review Request Club]