シンプルながら奥深いパズルゲーム。消さなくてはいけない場面と、消してはいけない場面を目まぐるしく行き来しながら、操作はいたってシンプル。美しいデザイン。

A simple yet profound puzzle game. The controls are quite simple, as you dizzyingly move back and forth between scenes that must be erased and scenes that must not be erased. Beautiful design.