room_gaster leads you to this.
What is Entry Number 17?
There are many different endings in Undertale, if you count every single dialogue change, there are this many.
What is 93 Endings?
This is the longest track inside of the Undertale OST.
What is Undertale?
The genocide route is very popular in Undertale, however in Deltarune it goes under a different, fan made name.
What is Snowgrave?
These are the members of the Holiday family.
Who is Noelle, December, Carol and Rudy?
Fun Values can determine random events that happen when playing Undertale, in order to get the Sound Test, you need to get the Fun Value of 65 and do this.
What is beat Papyrus?
The genocide route has various changes to dialogue, with some dialogue being red. The first instance of red dialogue occurs here.
What is Toriels Kitchen?
This is where the track "MEGALOVANIA" first appeared.
What is the Earthbound 2012 Halloween Hack?
The DevilsKnife gives you this special magic benefit.
What is reducing Rude Buster TP?
Upon defeating this boss earlier than you were supposed to, the music that was supposed to play when encountering an enemy bugs out and doesn't play.
Who is Mike?
Defeating Undyne the Undying has an effect on this object found earlier in game.
What is the sign in snowdin town?
This is the highest LOVE that a player can get on the True Pacifist Route
What is LOVE 20?
This is the largest time signature found in the Deltarune track, "The Third Sanctuary"
What is 23/16
What is Chapter 3?
The TwistedSword is crafted with these items.
What is the Pure Crystal and Thorn Ring?
This track, found in game files, originally warned people to not spoil the game for others (a warning that obviously went unheeded).
What is abc_123_a.ogg?
By fleeing from this random encounter in Waterfall, your genocide route will immediately be aborted.
Who is Shyren?
The Roaring Knights motif is from this song from the Deltarune Chapter 1 OST.
What is The Door/The Chase?
This fight can be entirely skipped by using the item "TensionMax"
What is the Statue in Chapter 4?
Various items protect against various elements, the first major example of this happening is this defensive armor in Chapter 2.
What is the Mannequin?
Upon defeating Undyne and backtracking to the room prior to her boss introduction, you can meet this NPC.
Who is the Puzzle Master?
The art club meets on this date and time, don't be late.
When is October 10th at 8:00 PM
Toby is well known for his use of motifs throughout Undertale and Deltarune, however in the track "Hopes and Dreams" he uses this motif found in neither, however it is found in the webcomic "Homestuck"
What is Penumbra Phantasm?
You can actually see what S-Action and R-Action do by doing this.
What is holding the "A" key whilst hovering over any pink/green highlighted text in Ralsei/Susies magic menu?
GOD BLESS YOUR SOUL IF YOU CHOSE THIS
Chapter 3 has a very different way to obtain the egg compared to the rest of the chapters. Detail exactly how you get it without doing the sword route. Failure to do so will result in you getting -500 points. You cannot back out.
What is...
Getting the lancer controller, solving a puzzle, throwing the box it spawns across a river, go to nowhere, push the box onto a plate, go to the next room, get a tripticket, go encounter an enemy and hover over the act "BreatheOnX" and hold left.