Use 'Space' or 'Shift' to Jump Up ad Dow Arrows keys or 'W' / 'S' to move Up ad Dow respectively.

You start the game as a blue square box. you are moving on a wire. You will try to move as far as possible without hitting the red squares

Use 'Space' or 'Shift' to Jump Up and Down Arrows keys or 'W' / 'S' to move Up and Down respectively.

For iOS:
Safari on iOS 8 and later supports WebGL 1.0, and on iOS 15 and later supports WebGL 2.0.

For Android：
Nearly all of them support WebGL