I made a simple flash program that simulates Tesseract

(click in square, then use QWERTASDFG keys)
click here


If u dont know there are 6 polychoras in 4D space:
5-cell or simplex or pentachoron
8-cell or tesseract or octachoron
16-cell or hexadecachoron
24-cell or hyperdiamond or icositetrachoron
120-cell or hyperdodecahedron or hecatonicosachoron
600-cell or hypericosahedron or hexacosichoron
(i really remember all these names)

it was hard, first i need to shift tesseract into 3d, then i need to shift resulting image to 2d, then i need to draw this