We are all travellers
Infocom's old text adventure games came with hint booklets (written by Infocom themselves) that were intended to help you through difficult sections of the games. Each booklet had a "For Your Amusement" or "Have You Tried...?" section which contained little extra things and Easter Eggs that you might not see from playing the game normally (though some of them would cause you to die). Since Undertale has so many secrets and Easter Eggs, I decided to make a "For Your Amusement"-type thing for Undertale. Obviously, spoilers, don't read if you haven't yet played Undertale, blah blah blah. Let's go. Have you tried... ...exiting the game during Flowey's first conversation (before the tutorial fight), then reloading and talking to him again? ...buying a Hot "Dog" from Sans when your inventory is full? Several times? ...killing Toriel, reloading the game and sparing her, then talking to Flowey after the fig...