WASD or Arrow Keys i time with the music.

FNF Music 3D game is a music and beat rhythm video game in which you'll have to take part in battles against your girlfriend's dad. In which, the player must pass multiple levels, referred to as "weeks" week 1, week 2, week 3, week 4 and so on, each containing three songs...

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