The snake lives in its own small kingdom, in which it is the only inhabitant. The kingdom is a green playing field, lined up on the cells (by this it is somewhat similar to a chessboard), and a red snake crawls along this field. On the field there are some wooden boxes (obstacles) and gold coins that the snake needs to be collected. Until the snake collects all the coins, the doors will not open before it, and it simply will not be able to go to the next room. The snake moves by itself, all you have to do is direct it.