This game invents the mechanics never seen before, and therefore cannot be classified as belonging to one particular genre. It is a hybrid of a puzzle game and a metroidvania-like exploration game.

In the classical metroidvania setting, finding an item is what grants the character a new capability and opens new areas. But here, there are no items. All that matters, and what makes new passages passable, is the relative position of the four blocks of the "body" when they are about to form a rigid shape. The puzzle is how to assume the needed new shape when exiting the red areas, and how to shape-shift while exploring is an element of a metroid.

The only conclusion that can be made after playing: a masterpiece.