Loading Pong Almost From Scratch…
Move your paddle to meet every shot, angle the ball past your opponent and take the point.
Originally by luxedo · GPL-3.0 licence · source
Yes. Pong Almost From Scratch 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.