I saw the first two posts, and was curious to see what would be done with how broad of a concept UNDERSWAP has become since October of 2025, so I quickly decided to try and make Talksprites based on the poses from existing art like I'd previously done with Mimimuta's OUTBOUND!

(If sm-baby does end up seeing these, I hope that what I've included below captures a similar feeling to what you were intending to.)

And because the full-body references of Sans and Papyrus' Younger Versions of this AU were the first pieces of public content, I also wanted to try making them scaled in front of a hue-shifted version of the River Person's sprite in UNDERTALE.

However, by the time I had almost finished my original attempt with just the black-and-white Concept Art, official palettes were given for their present-day Adult Versions seen in the last attached LINK, so here are the Overworld Sprites being more accurate to those palettes whilst still having to guess for what wasn't included like Papyrus' Bunny Slippers and the leather of Sans' Belt!

(Mega from Roletale)

📝Commission me here!

If the swaps do end up being the same as UNDERSWAP, especially for the monsters in Waterfall unless areas also swap, I'm also considering making Concept Art for Chara and Flowey's interactions based on trying to continue my own interpretation (although I haven't made anything yet because I don't want to separate my ideas from the limited canon by too much yet).

LINK: https://www.tumblr.com/sm-baby/797015672120082432/roletale-frisk-and-chara?source=share

Apathy Mega >:3