Angry Birds has been knocked off its mighty perch at the top of the App Store by little known physics game Bubble Ball, which was designed by a 14-year-old boy.
Bubble Ball, created by young Robert Nay of Utah, USA has been downloaded over two million times on iPhone and Android since its launch on December 29th.
The game is simple enough. It requires players to strategically position metal and wooden blocks so that when the bubble drops into play, it will bounce off the targets and cross the finish line. You can use power-ups to assist you in your quest and reverse gravity to help you complete the level. So far it has proved to be a massive hit, overhauling Angry Birds which has been atop of the free app tree for longer than we care to remember.
Nay designed and did all of the coding for the game himself by researching mobile software programming and learning how to use the Corona Mobile SDK, which gave him the benefit of a built in physics engine. His mum helped him with some level design suggestions and helped him get it on iTunes and now he's top of the charts.