Super Archer: Catkeeper

A Boys game that plays in the browser: Super Archer: Catkeeper starts on the click and keeps its progress there. Designed around touch input, and comfortable on a small screen. Listed under 3d, android, avoid, boy, brain.

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.