A free program for Android, by Supersonic Studios LTD.

The Stack Rider app is a game that will test your patience and creative thinking on how to pass through all the obstacles in the game. You will need to finish the line without slamming into a high wall. For you to be able to do that, you will need to grab more balls to build a taller stack. And with each ball you get, there is an equivalent point that you can collect. The higher the stack, the better. So make sure to collect as many balls as you can, and at the same time, be careful while finishing the line so you will not repeat from the start.