Sky Roller Online

An Arcade game that plays in the browser: Sky Roller Online starts on the click and keeps its progress there. Taps and swipes are the whole vocabulary — a phone plays it best. Listed under 3d, arcade, avoid, boy, girl.

It is drawn for a tall screen, so it fills a phone held upright rather than a wide monitor. It costs nothing and asks for nothing: no registration, no download, no launcher.