What the player needs in the game is to find the mechanism, and use the geometrical visual contrast to finally clear the customs. In the game, the player can achieve the result through the following operation methods.
1. Click: Click on a certain line position in the game, and Princess Ada will go to the position you clicked. If the clicked position does not have a complete route, Ada will not move.
2. Sliding: Under normal circumstances, the organs with "protruding dots" (2-5 dots) are slid up and down. Totems can also slide.
3. Rotation: Circular sliding, there are many such mechanisms in the game, and there are various changes. The biggest feature is that if the route you are looking at from a certain perspective has been broken.