There are two Javabased interactive versions of the hypercube available
here. Each of them requires you to have a Javacapable browser, and to have
Java enabled. See the documentation for your browser to see how to enable
Java.
Interactive applets and instructions for them are available for:

This applet shows the hypercube rotating through the fourth
dimension. The rotation is continuous, and you can change the
plane in which the rotation occurs.


This demonstration uses a parametricgraphics applet developed at Brown
University. The applet lets you move through fourspace
by adjusting angles of rotation in two different planes. This
hypercube is actually a coarse parameterization of a torus on the
threesphere in fourspace; you can increasse the number of facets used
and thereby make the torus smoother.

[an error occurred while processing this directive]