Thread:TheHumanAmbassador/@comment-30937172-20181028162351/@comment-32182236-20181124144406

Kris:I've said it before, Lark was corrupted by his hate, since he thinks you were a coward for "not saving your brother". Actually, he's controlling the Pigmask army right now, not the other way around.

(..Or it was simply an invalid status condition, since several conditions from Mother are not supposed to exist in Undertale. One of those hit Gaster, he's in an invalid state. Glitches.)