It’s important that if you’re a demon you should have some sort of presence in the darkness. In the case of the Bat Demon Blacklight White Mask, that’s a literal truth. This costume, though painted white and black, glows when a blacklight it taken to it. How cool is that? (Answer: Pretty cool). Demons are cool. Bats are cool. Blacklights are cool. It’s a convergence of everything cool that Halloween represents.
Be the terror in the night, be the Bat Demon Blacklight White Mask. The Bat Demon Half Mask look like a nightmare version of Batman (I’m assuming somebody got hit with a bad load of Scarecrow gas) mixed with a demon from Hell. You can’t lose with that combo.