The 4-polytope

Definition

A 4-polytope is a closed four-dimensional figure. It comprises vertices (corner points), edges, faces and cells. A cell is the three-dimensional analogue of a face, and is therefore a polyhedron. Each face must join exactly two cells, analogous to the way in which each edge of a polyhedron joins just two faces. Like any polytope, the elements of a 4-polytope cannot be subdivided into two or more sets which are also 4-polytopes, i.e. it is not a compound.

From Wikipedia

You can watch it changing its shape and form through 4 cameras that i set for you.

(Unfortunately this is a 3D game, so, you can't actually see how the shape is changing)