"Ooo - Undertale" is a high quality rip of "Ooo" from Undertale.
Jokes[]
This rip features the ambiant track "Ooo" from Undertale with someone saying "Oooooo" over it. At 0:09, the person imitates the "whoop" of Zoidberg from Futurama. This continues until 0:12, then the track fades out and the person starts singing "IT'S THE NUT-" before being cut short. This refers to The Nutshack intro.