- The fact Clover jumped in Mt. Ebott to find out what happened to the people who fell in it and disappeared.
- Dalv and Clover's friendship at the end of the demo
- At this point, it's unknown what Flowey's motives are, but it's pretty cute how he keeps helping Clover through the game and how friendly and polite he is whether Clover chooses Pacifist or Genocide Route.
Heartwarming / Undertale Yellow