Check Out This Polish Tumbler (Video)
Dizziness apparently is not an issue for Jozef Wadecki, otherwise he would probably have a much more difficult time sticking that landing after flipping his body about a dozen times.
For his first routine, the Polish tumbler executed a “front flip off of the springboard, followed by a whipback, back handspring, triple twist, whipback, back handspring & triple twist” (according to the YouTube description). His second routine consisted of a “round-off into a double layout, whipback, back handspring double layout, whipback, whipback, double back with a full twist.”
I had a tough time writing all of that out. I would imagine actually doing it would be a heck of a lot harder, unless you are Jozef, who just so happens to make it look quite simple.
See for yourself below.