Song That Might Play When You Fight Sans
Song That Might Play When You Fight Sans is the 72nd track in the UNDERTALE Soundtrack. Its melody is mostly derived from the song sans. While it is placed between Undertale and The Choice in the soundtrack, when Sans's encounter in the Last Corridor occurs, it is not present in the game files and does not play in the game.
During the 10th Anniversary Stream, an arrangement of MEGALOVANIA titled Song That Plays When Somebody Verses Sans plays during Sans's battle segments, referencing this track's title.
- Much of this song is made with instruments from the SNES versions of Mega Man X and Mega Man X2, particularly their guitar sounds.