Welcome to the Underside Out WikiEdit

An AU where Undertale takes place in the Inside Out universe, and Undertale characters merged with and replace Inside Out ones.

Describe your topicEdit

Write a description about your topic. Let your readers know what your topic is about and add some general information about it.

Latest activityEdit

  • categorization Undyne
    edited by Beep's B diff
    Added category: Characters
  • categorization Undyne
    edited by Beep's B diff
    Added category: Emotions

    Make a Connection

    Categories are tags that help readers find similar pages.
    Click the Add category button
    at the bottom of an article
    to list that page in a category.

    Make a Connection

    earned the Make a Connection badge
    Awarded for adding 1 article to a category!

  • new page Undyne
    created by Beep's B
    New page: Undyne Aliases Unknown Relatives Unknown Affiliation Headquarters, Frisk Biographical information Marital status...
    Summary: Tested the infobox feature

    Making a Difference

    Is something missing? Is there a mistake? Don't be shy.
    Click the edit button and
    you can add to any page!

    Making a Difference

    earned the Making a Difference badge
    Awarded for making 1 edit on an article!

  • new page Underside Out
    created by Beep's B
    New page: Underside Out is an AU created by Elsa12TMNT.
    Summary: Added main description article.
  • edit Underside Out Wiki
    edited by Beep's B diff
  • discussion page Welcome!
    comment by Ducksoup


    Hello, I'm a member of Fandom's Community Support team. We're excited to have Underside Out Wiki as part of the Fandom communit... 

Photos and videos are a great way to add visuals to your wiki. Find videos about your topic by exploring Fandom's Video Library.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.