I think that's what makes Reigen such a great character. He shows up in the weirdest places and somehow turns everything on it's head. And his execution of his "attacks" are always a treat to see. Plus the description of his moves are also hilarious.
hahahaha i thought earlier in the episode that it would be pretty funny if somehow reigen would defeat the teleportation guy, and wouldnt you know it, in from the side walks reigen with his special techniques xD