Summary: hi guys! Here is the crossover between tmnt and undertale. Okay so Mikey was screwing stinks around in Donatello lab until he accidentally touched something dangerous. Now all of Sudden the turtles had got transformed into the undertale world. And once they got there, they all screamed at Mikey for his childish attempts and got them stuck into the undertale world.... But now how will they get out? Well let's see ͡° ͜ʖ ͡°

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In sans and papyrus house

Third person p.o.v

Papyrus was making spaghetti for dinner as usual in the kitchen and sans was making puns as usual when all of a sudden, they heard yelling and yelling and it was coming from outside

"That's weird. We don't usually hear yelling outside of our house." Said sans. "Could it be another human?" Said papyrus.

Sans thought about that for a moment until he said, "yeah it could be. Come on bro. Let's go investigate 😏😏😏😏😏😏"

And then the two skeleton bros had went out to investigate the strange noise.

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The three titles turtles, Leonardo Raphael and Donatello were in front of sans and papyrus doorway surrounding and upset Mikey

Mikey had whimpered. Donnie had sighed and said, "look it's okay now Mikey. Just don't come into my lab without permission ever again okay?" Mikey had nodded still whimpering. He was too upset and weak to stand up.

Raphael had suddenly realized that they were in front of someone house. Leonardo and Donatello had realized that as well and said

Leonardo: bros, do you think they heard our screaming

Donatello: I....I think so

Mikey had looked up from curling his knees as the front door slowly unlocks showing the two sketelons with confused looks on their faces

All:!?!?!?!?!!!!?!!?!

Sans had whispered to papyrus,

Sans: who are they?...

Papyrus: dunno....

Mikey had totally freaked out and said

Mikey: AAAAHHHHH!!! DEAD SKELETON DUDES

He hide behind Donnie

Sans: ummmm who exactly are y'all guys and how did you get here??

Leonardo had starred at sans and papyrus for a few seconds and said

Leonardo: our apologies! As you can see we are the ninja turtles. My name is Leonardo. This is Raphael, Donatello, and the one in the orange is Michaelangelo.

Sans: heh! My name is sans and I have the power to make awesome puns

Raphael: huh?! Like what the hell is a pun?

Sans facepalmed

Papyrus: AND IM.. THE GREAT PAPYRUS!!!

Mikey giggled a little at papyrus.

Frisk: hey sans, hey pa-

The human child stopped as they saw the ninja turtles. Frisk had fainted

Papyrus: HUMAN!!!

sans and papyrus had rushed over to the human to aid (him/her)

Donatello strangely looked at the human child as (he/she) had fell unconscious

Papyrus: I, THE GREAT PAPYRUS! WILL AID AND HEAL THIS HUMAN!

Sans: let me help to bro!

Donatello had wanted to help the human to so he joined sans and papyrus.

Mikey had whispered to Leonardo about papyrus.

Mikey: I think a kinda like that tall skeleton dude

Leonardo facepalmed

*do you guys want me to continue or onto the next request???*

Make your choices 🍴🍴🍴🍴🍴