Use mouse to play the game.

The game is on strings. Tap the screen to hook with string and jump over to cross the level.
There are multiple obstacles on the way. If you lost the string you’ll fall down.
So continue to tap and stayed hooked with the string

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