The name is Smileball and to play online just visit www.smileball.ch, however, if you prefer, they have iOS and Android apps.
The game is part of a campaign of medical security company named KTP, from Switzerland and was made by the German agency webguerillas. They also have build a real pinball machine, working with the same principle. You can see it in action in this video.
Now go there lose some minutes playing. Smiles are good for your health, after all, right?