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RinnyRobin — Undertale Battle: Koro-sensei

Published: 2015-11-14 04:39:58 +0000 UTC; Views: 7310; Favourites: 104; Downloads: 12
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Description I will convince. Undertale. Best. Game. Ever! And now, I'm addicted to it.

I have seen many crossovers with Undertale, like OFF, Madoka, Steven Universe, etc. But I thought of more crossovers, like, 'What if Koro-sensei were in Undertale?' I mean, Koro-sensei is like a monster, and the other monster might think he's like them. And I would image Koro-sensei came there for reasons, *cough*Takingabreak*cough* 

I got to admit, drawing Koro-sensei black and white is quite hard. Especially the tentacles! What have I done with his hands?! But I'm quite proud of his face though.

I also found the perfect theme for him when you encounter him: www.youtube.com/watch?v=boEdNS…

Koro-sensei from Assassination Classroom belongs to Yuusei Matsui
Undertale belongs to Toby Fox

Base: falcosartcorner.deviantart.com…
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Comments: 24

shadow-the-octoling [2018-01-11 21:31:33 +0000 UTC]

if koro-sensei was in undertail i think i would scream in joy!

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MeliodasDemon [2017-11-30 15:04:10 +0000 UTC]

some of my favorite things in one     

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VocamanGamer [2017-09-10 13:41:38 +0000 UTC]

This is so freakin cool!

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rosythefoxluv [2017-01-25 02:43:47 +0000 UTC]

This needs to exist.....

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azusa47 [2017-01-20 23:23:59 +0000 UTC]

Nurufufufufufufufufu,Its Assassination Time!                  

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Count-Author [2016-09-05 23:00:54 +0000 UTC]

Staring/Smiling contest!

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CandyCresent [2016-06-11 23:47:50 +0000 UTC]

Me: Damn, He's fabulous!
Koro-Sensei:          Thank you~!
All The Classmates:       
Gaster I Dis Dis :3
Frisk: WTF. 
Sans: I Just. . . Wow. Nope.  
Papyrus: WHY IS THIS SQUID THING MOCKING ME?!  
Undyne: You Guys Don't Know What Assassination Classroom is  
Mettaton: NO NO NO GET THIS FILTHY CREATURE AWAY!!  
Flowey: Imma Reset Now.  
Alphys: OMFG ITS KORO-SENSEI FROM AN ANIME EWVHAHEJGFAYEGFIA                                              
Asgore: WHAT IN THE FUCK IS THIS!? 
Toriel: I Have No Words.   

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diamondtwins In reply to CandyCresent [2016-12-22 12:59:46 +0000 UTC]



me: *basically alphys* 

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PBGirl In reply to CandyCresent [2016-10-11 00:31:18 +0000 UTC]

Epic XD

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PurpleGuyFan101 [2016-06-09 23:00:08 +0000 UTC]

OOOOOH ITS COOL   I love UnderTale and Assassination Classroom   my computer is lagging like crazy now.   but still, that's a cool picture. Also umm... I am kinda new to DeviantART and dunno how to do.... much of anything... How can I change my name?

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RinnyRobin In reply to PurpleGuyFan101 [2016-06-10 00:42:36 +0000 UTC]

You must be a core member to change your name, and how to get there is to go to settings, and you will find it.

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PurpleGuyFan101 In reply to RinnyRobin [2016-06-10 02:10:27 +0000 UTC]

Oh. Okie. I'll keep that in mind. Thank you.

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Kyutto [2016-06-07 04:56:24 +0000 UTC]

SOME GOODSHIT RIGHT THERE   

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THEHEROBRINE16 [2016-03-04 04:06:41 +0000 UTC]

 that is awesome    

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MushroomMoon [2016-01-25 05:47:50 +0000 UTC]

Oh my god I love this idea, he'd fit into the Undertale world pretty well too. Though he'd be impossible to kill, even harder than Sans. I love that you added in his laugh too omfg.

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SaberStar2 [2016-01-14 16:20:35 +0000 UTC]

is that from assassination classroom?

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RinnyRobin In reply to SaberStar2 [2016-01-15 04:12:11 +0000 UTC]

Yes it is.   

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Yukimazan [2015-11-16 06:48:26 +0000 UTC]

Even if he spares and one tries to do a betrayal kill, he'll probably dodge it off. I do consider Koro-sensei as a pacifist type other than his blowing up the moon thing. But boy, he's gonna have a dodge rate of 999%!

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ms-wabbit [2015-11-14 09:30:53 +0000 UTC]

this is genius! 

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ZombieCowOverlord [2015-11-14 07:38:11 +0000 UTC]

Oh no! Koro Sensei would be a pest to beat! Especially at 20 moc speed!....>_> Though makes me wonder if this did occur, would there be an action of throwing a dirty magazine his way XD?

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RinnyRobin In reply to ZombieCowOverlord [2016-01-07 06:31:39 +0000 UTC]

Sorry for the late answer! >.<
Yeah, there might be! Throwing a dirty magazine at him would make him lost concentration a bit, and his speed would slow down as he was stressing in embarrassment and hiding his blush. However, his speed still never gave a hint that he slow down. He's indestructible!

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ZombieCowOverlord In reply to RinnyRobin [2016-01-09 06:12:05 +0000 UTC]

Yes he is lol XD

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Hexidextrous [2015-11-14 04:42:57 +0000 UTC]

It would be really hard to go Genocide on him, especially since he's better at dodging than Sans even (since he can run at Mach 20).

But yet if you go Pacifist, he'll be able to destroy the world!

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RinnyRobin In reply to Hexidextrous [2015-11-14 05:00:37 +0000 UTC]

Yeah, I really the idea that Koro-sensei would be the hardest boss than Sans in Genocide.
And in the Pacifist, I kinda have the idea that Koro-sensei wants to challenge you, even though you wouldn't fight back. And if he spares you, he might consider you to be his student, telling him that if he doesn't fight back, he will destroy the Earth along the underground, and goes back to the surface, return to school.

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