Crabitron‘s Creator and Lead Developer, John Millard, has uploaded a video of a prototype of Crabitron using Kinect 1, which you can watch above. Something impressive I noticed in the prototype is that Two Lives Left have managed to get both open & closed hand detection along with hand rotation tracking while full-body-tracking at the same time despite only using Kinect 1! Please note that there are no plans to actually release Crabitron on Xbox 360, the prototype was created to test Kinect controls before they had Xbox One devkits.
Crabitron is an ID@Xbox game coming soon for Kinect 2 for Xbox One.
Source: John Millard's YouTube Channel