How it all started: Alphys discovered a new way to mutate monsters... X POWDER. It only affects monsters, though. She used X Powder on all of the monsters she tested, and it was a success...? The monsters are now attacking other monsters, and Frisk is in charge to stop them... The monsters are not amalgamates, but X MONSTERS. In this 5-part series, you will try to save the underground from these monsters. THIS SERIES OCCURS AFTER THE EVENTS OF A NO-BOSS KILL NEUTRAL RUN, WHICH MEANS YOU KILL AT LEAST 1 MONSTER, BUT N O T THE BOSSES. The maker of this X powder was a scientist before gaster...
Thanks pococikapusta for making the battle creator! First part of the X Mutation Series.
