Gyaa Ha ha!
You wouldn't mind walking me back to my study, wouldja?
Got something I gotta finish writing, y'see...The Old Man, Chapter 4
Gyaa Ha ha! is the 51st track of the DELTARUNE Chapters 3+4 OST. It plays during scenes involving the Old Man in Chapter 4. If all enemies in the Chapter were recruited, they will come to rescue the party and Jackenstein when they fall from a tower when climbing after the Knight, and this track plays during the ensuing cutscene.
The track was arranged by Alex Rosetti.[1]
According to Alex Rosetti, Toby Fox gave them a piano version of Gyaa Ha ha!, with the song "Doug's Lucky Hat" from Doug for a style reference.[2][3]
- This track features Undyne's leitmotif from Undertale, likely alluding to the fact the Old Man's Undertale counterpart was Undyne's personal hero.
- This track's title may be a reference to Undertale's Nyeh Heh Heh!, as both tracks are titled after their respective characters' laughs.
- ↑
Now that it's been a bit (and I added the credit to my website finally) I will say the specific Deltarune track I arranged was Gyaa Ha Ha! Presumably that track title isn't really a spoiler if you haven't played. It was really fun for me bc it's one of my favorite styles to make music in!
— @albasoup.itch.io on Bluesky, June 10, 2025. - ↑
The version I got was just piano. And he sent me a song from Doug as a style reference (lmao)
— @albasoup.itch.io on Bluesky, March 06, 2026. - ↑
it was Doug's Lucky Hat
— @albasoup.itch.io on Bluesky, March 19, 2026.