One of the best free games I've ever played on mobile. Worth every penny you dont pay. The controls are simple and easy to use. The level design is original and entertaining. The story itself isnt amazing and left on the back burner but you'll be too distracted by playing the game to notice. Only drawback is that level design goes from single line runing, challenging obstacles, until it eventually becomes really frustratingly difficult. You'll even feel acomplished after. Worth playing.