Start Menu

Name the fallen human.

Name screen

Start Menu is the 2nd track in the Undertale Soundtrack and the Undertale Demo OST (where it is called "Menu.") It plays whenever the player is viewing a new file.

After the player views the True Pacifist Ending Credits and gains the option to do a True Reset, this track plays at x0.1 speed.^[1]

Variations

There are seven variations of this track. Only two of these variations are included in the official Undertale Soundtrack: Start Menu, and Menu (Full). Menu (Full) plays at the end of the True Pacifist Route but before viewing the credits.

Every subsequent iteration of this track adds instrumentals directly related to how many characters the protagonist befriends.

Image	Audio	Description
		Default, contains only square wave melody, and a noise channel imitating a snare drum.
		Met Flowey, adds syncopated bassline from the source material, Once Upon a Time.
		Spared Toriel, adds a piano harmonizing the melody, and doubles the bassline.
		Befriended Papyrus, adds more square waves to the harmony, and adds bongos.
		Befriended Undyne, adds strings doubling the piano's part, and adds claves.
		Befriended Alphys, adds glockenspiel doubling the melody.
		Saved Asriel Dreemurr. Adds sustained strings, and counter-melodies from the piano. It also quotes the C section from Once Upon a Time, from 0:21-0:32. mus_menu6 also acts as a separate track in the OST, Menu (Full).

References

1. ↑ Undertale Main Menu Music Easter Egg. Jan 17, 2016. Youtube.