The pilot of Underverse was originally a short video featuring only images of Classic!Sans, Underfell!Sans, Underswap!Sans, Outertale!Sans, Ink!Sans, Geno, and Error!Sans, ending with the formation of a wallpaper.
The release date of the pilot is marked as Underverse's anniversary, and the pilot influenced Jael Peñaloza to create the Underverse comic, eventually transforming into an animated series with the release of Underverse 0.1 Part 4.
The animation is set to the music "Headphone Actor" by IA.
| XTale Timeline 0 | Timeline I | Timeline II | Timeline III | Timeline IV | Timeline V | Timeline VI | Timeline VII | Timeline VIII | Timeline IX | Timeline X | Movie Underverse Other Videos Underverse (PILOT) | Underverse Stupid Short 1 | Come back | HOW TO DRESS CROSS | SPOILER ALERT | Underverse Stupid Short 2 | XTALE FRISK AND CHARA'S SHOW | HAPPY BIRTHDAY, CROSS! | FRESH INK'S C.A.R.E. | XTALE FRISK AND CHARA'S SHOW 2 | X-MUG | EPIC JOINS UNDERVERSE! | WHO IS THE MOST POPULAR? | XGASTER'S DAILY ROUTINE | XTALE FRISK AND CHARA'S SHOW 3 | XGASTER'S DAILY ROUTINE | UNDERVERSE 0.6 LEAKED | HAPPY BIRTHDAY, GENERAL MTT! | UNDERVERSE 6TH ANNIVERSARY! April Fools videos: ANDARVARSA | XTale XI | XCHARA VS BÊTE NOIRE - Part 1 | Underverse 0.7 (April Fools) Removed videos: Pieces | Komm Süsser Tod |