Jumping Dot Colors

Jumping Dot Colors sits on the Puzzle shelf of this catalogue, and opening it is the whole setup process. It is built for touch, so a phone or a tablet is the natural place for it. Its tags here are ball, color, jumping, kids, matching.

It is drawn for a tall screen, so it fills a phone held upright rather than a wide monitor. Everything runs client-side, so there is nothing to set up before you start.