YouTube user buptkangbo used the Unity3D game engine to develop a sort of 3D version of Pac-Man -- or, at least, a game roughly equivalent to what someone who has never seen Pac-Man would imagine if you had just described it to them. A yellow sphere walks around through a grassy field, collecting mushrooms and throwing them at ghost monsters. That's cool; the "official" Pac-Man platformers took lots of liberties, too.
What makes this particular version unique is that it's controlled with Kinect, played dolphin-style -- by which we mean the player leans into the camera as if swimming underwater. See for yourself after the break. If the demo actually becomes available for download and you then decide to try it, we suggest having plenty of snack foods handy for the full Pac-Man experience.