An iPhone game made by a 14-year-old has made it to the No 1 spot on the iTunes App Store’s top free apps list.
According to AllThingsDigital, Bubble Ball was created by Robert Nay, from Utah, and his mother Kari.
The physics puzzle game allows players to use different pieces and powerups to get the bubble to the goal.
Robert has tried programming before and used tools such as the Corona SDK to create the game. He learned Lua to programme the game and created the art for it, while his mother helped him design most of the levels.
The game was launched on 29 December and has had 400,000 downloads. At the time of writing, the game is No 1 on the top free apps list.