Fallen Down 2 - Undertale 2 is a rip of "Fallen Down 2" from Undertale 2.
Jokes
The first 15 seconds are just a static image of the title, which then changes to an image of the Surface at the end of Undertale with Also sprach Zarathustra by Richard Strauss (more commonly known as the main theme in the film 2001: A Space Odyssey). While the video continues a cropped out image of the Family Guy Yahtzee Hindenpeter Collector's Edition (Hindenpeter being a reference to the blimp Hindenberg). The rip continues with the blimp flying until it begins lowering until it hits the mountain and explodes, making parallels with the Hindenberg which also blew up. And finally dissolving into the image of the Numberphile's Euler's Number video but instead of an 'e', the image now shows a '2' in its place.
Trivia
- Much like the other Undertale 2 rips, instead of linking the playlist, the description links the Amazon page for the Family Guy Yahtzee game.