You are a fearless black knight with a wonderful sword and a gorgeous shield Hundreds of enemies come toward you to kill With you black knight build fight like a Spartan Your sword and shield are your weapons use them wisely This black knight warriors life is in your hands To survive just use your right and left key or touch the sides

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