So Red Ari is just Ari, but red, and very Hostile?
Well not really, BloodMoon Ari works compleatly different from Ari. she spawns on the corridor on the left and rund down to you slowly while youa re not looking at her through the camera. She is pretty much unstoppable as not even the door will keep her out so you have to balance doing all repairs and keeping the other girls out while constantly watching her so she never reaches you