Since this isn't HBO, where people will blow a gasket over "spoiled" easter eggs (even though it's their own fault for looking) I'm going to post about this here. Because I hate you all. Die in a fire .

So apparently there are some Kinect easter egg commands...

"lightning bolt" has already been found

I looked at the Kinect data and found some others, but they don't seem to be registered to do anything.

They are:

frag out
fire in the hole
ah ha
that plasma
fuck
shit
crap
faggit
forgot
closet
right here parker

I don't have a Kinect so I can't say for sure but those all appear to be unregistered commands (and they were added in the TU, they're not in the stock game)