The design of the different levels seems to get repeated a lot, only the colour changes, and the speed. But the layout looks the same. About halfway through the game you start hitting levels that are nearly impossible to pass because of the speed of the balls and the lag time with shooting and the fact that youre given colours you cant use. By the time you get the colour you need, youve lost.
Blue5308 about Crab Shoot, v1.9