Board Thread:General Discussion/@comment-31252171-20171008174544/@comment-32182236-20180607105949

MML!opinions!Fun!Chocolate! wrote: Also, I remember hearing somewhere that “song that might play when you fight sans” is unused because the title contains spoilers. I don’t remember where, but I think it makes sense. Actually, spoilers is probably why the song exists in the first place. So we'll be expecting THAT song rather than Megalovania if we ever fight Sans.. And to make Sans look like a regular opponent, hough it turns out we never fight hik until the end of Genocide.

..STMPWYFS is likely his pacifist fight theme. Which doesn't exist.