Okay, I've been into Undertale for too long now and I have imagined too much.
Example... How would the Underverse happen in other multiverse? Such as Fell and Swap? I had idea for both of them but I'll be putting into separate posts.
On this one, I'll talk about VerseSwap.
(OBS: Swapverse is already a thing, which is why I called it VerseSwap.)
It would start off with a different backstory for Xswap (which I haven't thought of yet) but would include the adorable CrossBerry that @jakei95 made.
The ending would be CrossBerry alone in that white void with Xswap Frisk, then the two would meet Template, a swap Error, that had been talking to Xswap Faster for a while.
Unlike Ink, he wouldn't be truly a “bad guy”, he would befriend CrossBerry but wouldn't be aware that Xswap Frisk was a ghost that kept around CrossBerry (Did I explain this correctly?)
After a while, another Sans would appear in the empty Xswap, that would be Dream from Swapdream. He noticed how much CrossBerry had hope and was super positive even if his world was a void, so he decides to “help” him find a way to restore his universe with one condition.
CrossBerry would have to join Dream into a quest for Dream's younger brother, Nightmare, who had disappeared on the multiverse and kept “causing trouble.”
Even if it's a swap, the war would still focus on Sanses.
CrossBerry Sans will be callee Cross, but to differentiate him from the original I wrote CrossBerry.
Instead of having a Blueberry! Ink, Error, Dream or Nightmare, I thought it would be interesting and more original if there were added the “swap fates” of those universes, since none of the four “have Papyruses”, if you get what I mean. So now we have Swapdream Dream and Nightmare, Template and Pale.
Since in Underverse we had Cross and X Chara fight in both Underfell and Underswap, since the multiverse is already swap I'll have them go for Fellswap on the fell fight and Swapfell on the swap fight, I hope that makes sense.
I hope you liked my idea! When I have time, I'll be writing my idea for the Fellverse.
Swapdream AU belongs to song-song-a (couldn't tag them here, sorry) and Template and Pale belong to @unu-nunu-art.
Thanks to @persuvia for telling me who they belonged to!
I would love to draw something like this, but if you came to my Tumblr before you know my drawing is bad, I'm ashamed of even trying to do something of such masterpiece when my skills are as great as a dog's.
Anyways, thanks for reading this!
