GENOCIDE ROUTE
Despite Flowey pleading for Frisk not to do it...they still did it. Frisk RESET once again after the True Pacifist Route, and now, they are doing something else other than pacifism...
Genocide.
Killing all the monsters in the Underground...for what? Just because of pure morbid curiosity...and now here they are...standing right infront of the judge of the Underground, Sans...
Frisk had killed EVERYONE, except for Alphys, Sans, Asgore, Flowey, and some unknown monsters that were evacuated by Alphys...and now...they have to pay for their actions and sins...
Sans stares at Frisk, his usual grin on his face, as the only things that can be heard currently is birds chirping, and a bell ringing from somewhere...
Sans had started to speak, talking about what Frisk had done, but he was cut off as Frisk took a step forward...
After that, Sans threatened them if they dared take another step, they were NOT going to like what happened next...Frisk took another step forward.
"welp, sorry, old lady. this is why i never make promises..."
Sans said, referencing the promise that Toriel made to him to protect the next human that fell down here, before she was killed by the exact thing that she wanted him to protect...
Soon after, the battle started, Sans and Frisk both entering Battle Mode...this is it...Sans is the last line of defense of the monsters, against Frisk...the true evil...
It was now, or never...either Sans wins, and the Underground is saved...or Frisk wins, and the Underground is dead...