more for the "Joey is a light player" pile, if you look at the picture beside Jude's bedroom door, she singles out one of the 3 monsters. The narration says "You've always been a bit creeped out by the monster in the water. It feels like the eye is following you...but only sometimes.". Rose and Vriska's denzien is Cetus, a mythological sea monster.
FUCK
I just assumed that was because Jude, being a paranoid fuck, had drilled himself a peephole. But there being a Cetus thing, and/or a Void thing (oceans and whatnot) also makes sense.