Use the arrow or WASD keys to manouver your snake. When a snake hits the side of the grid, it wraps around to the other side.
Snake 1's must protect the left side of the grid, and Snake 2 the right.
The ball travels around the grid. If it hits the left or right sides (the goals), the respective snake loses 2/3 of their length.
Each player should collect food with their snake to grow it. If a snake hits itself or another snake, it shrinks. When a snake loses all of its body parts, the other snake wins.