If playig sigle:

Move: "W,A,S,D" or "ARROW KEYS"
NOS: "L-SHIFT"
Restart car positio: "R"
Chage camera view: "C"

If playig two player:

Player 1:
Move: "W,A,S,D"
NOS: "L-SHIFT"
Restart car positio: "R"
Chage camera view: "C"

Player 2:
Move: "ARROW KEYS"
NOS: "N"
Restart car positio: "L"
Chage camera view: "U"

"Hyper Cars Ramp Crash" is a 3D stunt and crash simulation game with realistic physics and graphics. You can perform incredible stunts in many different modes with great looking cars. 7 different super-sport car models are waiting in the garage for you to try them. Open world, stunt modes and fall mode can be played in 1-player and 2-player modes.

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