Knife up is a time killer game where you must go up and collect coins Buy all the knives and get as high as you can You can personalize your knife adjust its power or you can buy a new knife from the storeAlso there is a multiplayer mode where you can play with a friend connected to the same WiFi and see which knife is the best Will your knife be the quickest Get ready to jump as high as you can Get your KNIFE and JUMP

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