What caught my attention in the first place were the graphics. They are very nice in their own cartoony way. However, I found 2 things to be particularly annoying (thus the 2 1/2 star rating).
1) The score/balls left menu on the right is overwhelming; I found it distracting and it takes way too much place, especially the octopus tentacles that stick out at the bottom. 2) The turtles head is not solid and I lost my ball because of it.
If you fix those issues you've got a potentially really nice game ahead of you.