This is a puzzle game about "Region".
Manipulate the regions to reach the goal state.

Each stage has several control buttons.
When you press the button, the regions will be changed.

You can undo as much as you like and reset easily.
You may repeat trial and error as much as you like.

This game does not include the usual physics like gravity and reaction forces.
The regions will be changed according to the unique physics of this game.