I drew this and its matching art just before Deltarune dropped and then completely forgot to post here for the rest of the month. whoops

anyway this is Undyne's Undying form in my Underswap take! I don't consider the no mercy route canon but I do have ideas for it anyway, namely that the route causes Papyrus, Sans, Alphys and Undyne to revert to their UT counterparts' roles (only those four because the rest of the cast's roles are too specific to their locations or circumstances for it to work on anyone else), hence why Undyne still gets this form. there's more of an explanation on tumblr if you're interested ✨