|“||If you're thinking to make more ANOMALIES...YOU'LL REGRET HAVING BROKEN OUR TRUCE. I SWEAR TO YOU.||„|
|~ Error!Sans warning to Ink!Sans|
Underverse Xtra Scene 1 is the fourth episode of Underverse. It acts as the stop gap for Underverse 0.3. With the events of the previous episode, Classic!Sans gets something useful to defeat Cross, while both Error!Sans and Ink!Sans have a little discussion. A revamped version was released on April 28, 2018 with sounds by Strelok.
Core!Frisk gives Sans some advice to defeat Cross, as Underfell!Sans joins him to the site. Sans, of course, decides to troll Undefell!Sans with the echo flowers. Meanhile, Error isn't pleased over this whole X-Event, and teleports Ink to an island in what is most likely Undertale or Underswap, given the orange sky. Error tells Ink that if he was involved, there would be plenty of fun coming on from his side. After Ink is sent back to Underfell by Error, Dream!Sans reminds Ink that he'll spy Cross and his brother and will give them crucial information to Ink on where they're heading next.
|Whispering Flowers||NyxTheShield||April 26, 2018||https://www.youtube.com/watch?v=lzxUzaA3Ig4|
|Treaty||NyxTheShield||April 26, 2018||https://www.youtube.com/watch?v=SvGoBfBIX7M|
|Echoes||NyxTheShield||April 26, 2018||https://www.youtube.com/watch?v=WbNFEeuWXEY|
- With Error's recent redesign for Lucidia, Underverse Xtra Scene 1 brought in that design for Error; Ink even notices that he has a scarf.