Things I thought in order:

Oh, it's Nate! Does he have nipples? *squints*
Berto has scary eyes in panel two
Still, it is fun to see Main World Berto go 'EVIL! INCARNATE!' while AOA Nate is more, 'eh, he's a red dude'.
Is that a Nate nipple? Even for the way he's sitting it looks in the wrong place.
Doug looks actively unwell at this point. His face looks thinner than Nate's arm.
Hey, the Devil has a twisty-tail goatee. Gotta give him points like that.
Is it weirder for Nate to have *no* nipples or just one nipple?
....I really need to wiki whether Nate has nipples or not.