The game is both played sigle ad two player.

Player 1: W,A,S,D
Player 2: ARROW KEYS

O sigle player mode:
Cotrol the camera by LEFT-CLICK ad MOUSE
Cotrol the camera zoom with: MOUSE SCROLL

Use Joystick cotrols o mobile devices/tablets.

Get ready to have a great eating and growing fun under an open sky with cool balls inside different costumes in this great simulator game! Eat as much as balls around and get as much as big in the ball’s arena. Eat others, earn coins, and unlock new skins. Chase after gifts, rotate the lucky spin, or enjoy the everyday gifts to carry your eating simulator experience further. All you want is to become the king of the ball arena with your cool player.

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