Plain and simple, this game uses a gravity system that makes apples fall. You must move to catch good apples and avoid bad ones using the arrow keys or mouse.
Clicking is how you start playing this game, you use the arrow keys or mouse to move.
The controls are the arrow keys or mouse to move your character. Some apples boost size, others are poison and make you shrink.
Most important is to master the dodge and timing to win. You must avoid the poisonous fruits to not shrink.
Q: What are the controls? A: The arrow keys or mouse are used to move.
Q: What is the objective? A: The goal is to grow larger than opponents by eating apples.
Q: Are there any stated features? A: Not stated.
Q: What is the main mechanic? A: Gravity is the main mechanic that makes apples fall.
Start moving to catch falling apples and dodge poison ones using arrow keys or mouse. I think the gravity makes timing fun, try Friends Battle TNT for a related experience. Master dodging to grow larger than opponents and win.