He really managed to give you some adrenaline in the fight in Waterfall. Oh well, now he fled to Hotlands. That's where the big EXP lies. Better go fast before he takes all.

skip to core smh

Well, damn. He already killed everyone in Hotlands. Go to CORE now before he can kill everything. As you continued, the fog of dust continues to flow in the air. What a deranged act. Well, can't blame him though. You did this to him. You made him go insane. That little screen of yours is not going to protect you any longer. Well, at least finish the job.

*skip to metta room

Huh, so he killed Mettaton too. The sirens were blaring, the CORE's temperature was rising. It was gonna explode. As you finally have him in sight, it was almost too late. Kill him fast.

"oh, hey. you're a bit late. it's gonna explode quite soon. but i guess you're too stubborn for your own good. welp, the classic way then."

BATTLE, START!

Kill him, kill Sans. Be quick.