This book is long and needs a lot of work, so I don't think that I will continue to write in here, especially since I've left the undertale fandom now.
Basic Change is when the Undertale theme is flipped, changed, or modified while still having the basic plot to the story in some way. Most of these AU'S have there own versions of characters that follow a specific theme;
Dancetale (Everyone fights/dodges using dance moves)
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Darktale (1: PokeGirl151) I don't really have a good description for this, but I did find some information from two different sights;
I found this on Undertale Amino:
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![Undertale AU List [DISCONTINUED]](https://img.wattpad.com/cover/108232714-64-k907909.jpg)