Why you don't fuck with classic sans

y'all fucked up

We see classic facing off against nightmares gang. He stands across from them as they all stare at him menacingly. Classic sighs at their foolish attempts to scare him.

Classic: So why do you want to fight me again?

Error: If we kill you then it makes my job of erasing the multiverse way easier.

Classic looks at him like he's stupid.

Classic: You know we're not in undertale right?

Killer: Yeah. So what?

Classic stared at them for several seconds then sighed.

Classic: Never mind.

Nightmare: Ready to die?

Classic: We'll see.

He put his hands in his pockets. He pulled out a length of rope and smiled.

Classic: Let's go.

The evil sans' all jumped at sans as he closed his eyes and sighed. Right before they reach him he activates his eye. Dust noticed instead of blue and yellow his eye was red and white and his smile looked borderline insane but could say nothing as the battle started.

Time skip

We see all of the evil sans in a pile with classic sitting on top of said pile reading a newspaper with no wounds on him. His jacket isn't even dirty. Killer had his own knife stuck in his head and looked extremely confused. Horror was tied up with the rope and had his axe stuck in his head with blood leaking down. Dust was impaled by one of his own bones and was lying face down in a puddle of his own blood. Cross was shaking in the fetal position with his eyes wide open in a cage made of bones staring at classic in fear. He had cuts across his body and his knife was lying 5 feet from him covered in blood. Cross chara was beside him in the same position. Error had a web like pattern on his skull and had his right arm broken. He was at the bottom of the pile. Nightmare was the worst. He was in his passive form with cuts and cracks all over him as well as one of his own tentacles nearby. All of them were looking at classic with fear in their eyes. Except for dust cause he was face down.

Classic: Everyone learned their lesson?

All of them nodded and dust let out a muffled yes.

Classic: And what was that lesson?

Error: Don't fuck with undertale.

Classic closed his newspaper and jumped of the pile. He leaned down and pats error on his head.

Classic: Good dumbasses.

Classic snapped his fingers and the cage around cross disappeared.

Classic: Don't EVER do this again. Got it?

All of the evil sans hastily nodded.

Classic: Then i'm leaving. Don' let me catch you're asses again.

With that classic teleported away leaving the evil sans' alone. They all waited a good five minutes before getting up and helping each other into a portal to nightmares realm.

----------------------------------------------------

Swap chara: Did you really beat all the bad guy's by yourself?

Classic: Yup.

Fell: I heard that cross needed therapy after that. What the fuck did you do?

Classic raised a finger up to his smile in a shushing gesture.

Classic: That's my secret.

Ink: He was able to do it because all of the classic characters gain gigantic power boosts when they leave their universe.

Classic looked at ink angrily.

Classic: Damnit ink. This is why we don't tell you shit!

Dream: Yeah ink. Why can't you keep secrets?

Classic: Shut up dream! No one likes you!

Dream: Oh.

Swap papyrus: Well I don't believe you. Seems to crazy.

Classic: Believe what you want.

With that classic placed a hand to the side and a portal opened. Everyone looked through to see nightmares gang looking at classic with terror in their eyes.

Classic: What's up bitches! Time for round three.

Cross jumped out of his seat and ran for the exit only for red bones to block him. He looked at classic to see he had the strange eye activated again.

Classic: Uh uh uh. If they won't run neither will you.

With that classic jumped through the portal as nightmares gang let out a scream of terror. The portal closed and everyone stared at it in shock.

Fell: No...

Swap: Fucking.....

Fresh: Way....

Another portal opened and classic stuck his head out and pointed at those three with errors wires wrapped around his hand. Error choking and cross screaming can be heard in the background.

Classic: Language!

With that he went back in the portal and it closed leaving every one staring at it blankly.