An iPhone physics-based puzzle game designed by 14-year-old Utah 8th grader Robert Nay has been downloaded more than 2 million times since its release Dec 29th.

He programmed it in 6 weeks at the public library.

It’s about moving a small blue ball from one side of the screen to the other by navigating shrewdly crafted obstacle fields of metal and wood.

[youtbe=http://www.youtube.com/watch?v=QU6kL9TwtAs&feature=related]