It's a great concept, the sprites are very good and simple. But you could add music.
Author Comments
A short puzzlescript game about cubes shifting in and out of existence every time they they are pushed.
Source code: https://www.puzzlescript.net/editor.html?hack=849a4fa2b3cd52bf79f5e559ba582c91
(Part of my daily puzzlescript creations. Visit my page for more)