You go to an AU one day called "Undertop." The ringleader, Gaster, charms the crowd as the different acts start - Sans with his gaster blasters, Muffet's acrobatic act, the Dreemurr family with their fire magic. After the performance you walk up to Gaster, who smiles and hands you a rainbow lollipop.

Hello there, little one! Did you enjoy that marvelous performance?