Loading Space Invaders (Barqawiz)…
Hold the line at the bottom of the screen, fire upwards and clear each formation before it lands.
Originally by Barqawiz · Apache-2.0 licence · source
Yes. Space Invaders arcade is free to play in your browser, with no account, no download and no payment.
Yes. It runs in a phone browser, and the on-screen pad and swipe controls send the same keys as a keyboard.