Introduction - If you have any usage issues, please Google them yourself
Snake in a box within a snake and a goal, the snake by the number of small squares (the start of the game, snake length 4). Snake automatically advance, you can use the cursor keys to control the forward direction of the snakeheads. Each forward a snake head, snake the last one disappeared, and change direction when the snake head snake bend at that point. The snakeheads when the target is met, the player one point, an additional length of the snake length. Snakeheads run into the walls or snake encounter, the game is over.