Provided you can ignore the discomforting sing-along soundtrack that kicks in around 29 seconds, this video is more than capable of eating up a few minutes of your day. It shows Mario (then many Marios) being controlled by some sort of hand movement recognition technology. Think Sony EyeToy, but, somehow, more gimmicky.
Wow that reminds me of LittleBigPlanet, a game I’m actually looking forward to. I like whimsy.
100 Marios, All Hand Controlled [Kotaku]