How fast are your thumbs? Prove it and you could win prizes. Thumbspeed is a very simple game. To our amazement, no one had an app like this so we decided to build one. The idea is to tap on the ball(s) as they appear on the screen as quickly as you can. The two balls shown below show up on the screen and you have to tap them with your thumbs. The white ball generates one hit whereas the black ball generates five clicks. Each level is for 15 seconds. As the levels progress, the speed at which the balls appear increases as well. Higher the level, higher the points per bust. We do hope you enjoy this game.