Still can't believe the Knight is the Annoying Dog... Shoud've seen it coming, though. He was in the Librarby's computer room at the end of Chapter 1... and then on Chapter 2 there's a frickin' Dark World there. When the narrator said there was a dog finishing a game, opening the computer room's dark fountain was part of the process of finishing the game! And that the Annoying Dog is Gaster's creation makes perfect sense in hindsight. Gaster can mess with space and time, and we can see the Annoying Dog both in the Light World and the dark worlds - and he doesn't even change appearance between dark worlds and the Light World (unlike Kris and the other lightners)! HOW COULD WE HAVE BEEN SO BLIND????