Flowey the Flower

(speaking to Frisk) "Howdy! Oh — did I scare you? Aw, don't look so nervous. It's not like I'm gonna do anything... this time."

(To Frisk) "Heh heh heh... you're shaking. Good. Means you still remember what I'm capable of."

"What, no witty comeback? Come on, Asriel, we used to be so much better at th—" (book impact — pain sound: "NGAAAAH!") "OW! You little—! Are you KIDDING me right now?!"