For extra awesomeness: Hold the UP arrow key and the D key at the same time! :D Arrow keys to rotate 3D. WASD to rotate in 4D. I'm working on the engine to draw in the correct order in 4D. Currently it isn't working correctly. :(
It's a bit glitchy, but still pretty cool in my opinion. Similar method to my 4D Tesseract. A Penteract, or sometimes called a 5-cell, is like a tetrahedron but with 5 points in 4D space instead of 4 points in 3D space.
