Some people asked, so here's a general idea of what being inside the mask is like.

	This is normal vision.
	This is looking through the Alien mask. After a few takes add some breath fogging and an overall damp and swamplike atmosphere molesting your face. It's actually pretty comfortable when it's not coated with sweat. There's a lot of trust involved while fighting with this thing on, most incoming moves become a hazy purple blur. I also have to wear a hat to keep the mask from spinning around my head whenever I move my body (the first two episodes it was a pair of headphones)
	This is looking through the Alien 3 mask. Needless to say I can't see a DAMN thing while I've got this on. I can only see if I look sideways through one eye, and while I'm moving around I just get tiny flashes of whatever's supposed to be in front of me. I'm essentially blind. Fun stuff. Everyone ought to try doing fight choreography in a mask sometime.