Warning: Bad Language.
This may very well be one of the greatest achievements in cosplay history.
Typically, cosplayers who wind up on the Internet are in crappy suits strung together with masking tape and construction paper. This functioning piece of art and engineering, however, is so ridiculously full of win, it might be dangerous for this guy to put it on, lest he get attacked by roving bands of Chitauri.
In the words of the guy shooting the video, "that's not fair."