FYI, I recorded several demos which show glitches that may occour if a hedgehog stands on your head and it is your turn. If you do it right, the other hedgehog will float in mid-air.

Get hedgehogs floating …
… using a rope
… using a piano
… using time-travel
… using a portal gun

All four demos show basicly the same glitch. Please discuss the glitch here instead of the demo pages unless you want to discuss one particular demo. Thanks.