MadShells

I could play this for hours & not get tired of it! Fun one to! :) :

It is better than free version because you can go farther in levels. On my first try I got to level 27.

its really fun with many backrounds complemetned by cool grapics and awsome soundvery challenging and fun with friendsplus highscores

This is among the better apps I have. Definantly worth the price. The only things I would suggest would be to add a menu. The other would be to have a level customizer (choose pic from backround and type of shell). If those twi things were added, we are looking at a 10 app :)