Backflip Maniac

Backflip Maniac is an Adventure game you can be inside of about a second after clicking. Designed around touch input, and comfortable on a small screen. Listed under 3d, html5, jump, jumping, physics.

It is drawn for a tall screen, so it fills a phone held upright rather than a wide monitor. Free to play in the browser, with no install step between you and the first round.