Snowball War: Space Shooter

Snowball War: Space Shooter is one of the Shooting games here that asks for no download and no sign-up. Taps and swipes are the whole vocabulary — a phone plays it best. Catalogued as action, arcade, ball, best, bubble shooter.

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.