MazingerZ, comes from a Japanese modder with the YouTube handle Ken450000, and has the player rocket-punching virtual balloon targets projected in front of them. The other, from Pierre Méar and Rahman Kalfane, is called Duck Leonard, and tasks the player with flapping their wings to navigate a mallard through the rooftops of Brooklyn. That's weird, right? What are you doing there, mallard? Ducks belong in ponds, silly.
Check out video demos for the two proofs-of-concepts after the jump!