Treasure Hunting Robot

Treasure Hunting Robot is one of the Shooting games here that asks for no download and no sign-up. Designed around touch input, and comfortable on a small screen. Its tags here are game, games, html5, online, shoot.

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.