(Basically the timeline was a normal time paradox fight, untill chara took a swing at genocide sans early, which caused another time paradox to happen, this time the bad time trio got transported to the time paradox timeline, Also the red sans is the sans from the bad time trio)

Sans sprites by toby fox

Underswap papyrus sprite made by J210

Storyshift chara sprite made by Frosty-Fires