Blob Giant Rush

Blob Giant Rush sits on the Hypercasual 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. Listed under 1 player, 3d, arcade, avoid, boy.

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.