Instructions:

1. Open the game on your PC or laptop.
2. Use the arrow keys (left, right, up, down) on your keyboard to change the direction of the snake.
3. Try to collect the food by moving the snake towards it.
4. Avoid hitting the walls or your own tail, as this will end the game.
5. Keep playing to achieve a high score!

For mobile devices:

1. Open the game on your mobile device.
2. Swipe your finger left, right, up, or down on the screen to change the direction of the snake.
3. Collect the food by moving the snake towards it.
4. Be careful not to collide with the walls or the snake's own tail, as this will result in game over.
5. Keep playing to achieve the highest possible score!

Have fun and good luck playing!