The dance machine has five keys: upper left, upper right, lower left, lower right and middle. Then ask why the dancing carpet is up and down, and then there is ↖, ↗. . .
That's the left and right keys. After entering the dance program, you can choose four or six keys.
The dance carpet is elastic. Now there is a kind of dancing carpet, just like a dancing machine. Ordinary dance carpets have no hand movements. The arrow can't be changed, the background can be changed, and you can also change it into a photo you are satisfied with.