Undertale Nintendo Switch Cheats > MGW: Video Game Guides, Cheats, Tips and Tricks

Undertale Nintendo Switch Cheats

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Nintendo Switch Cheats

Entering Special Names

While not traditional cheat codes, entering certain names when prompted to name the fallen human will give you a special message or effect. Most of these are names of characters in the game, causing the character in question to either object or allow you to use it.


Note: you cannot change your name unless you perform a True Reset at the end of a pacifist playthrough or complete a genocide playthrough. Some names are forbidden, and the game won’t let you use them at all.



Forbidden Names

Alphys – “D-don’t do that.”

Asgore – “You cannot.”

Asriel – “…”

Flowey – “I already CHOSE that name.”

Sans – “nope.”

Toriel – “I think you should think of your own name, my child.”

Undyne – “Get your OWN name!”

Gaster – No message; the game reloads the title screen.



Names With Effects/Messages

Frisk – “WARNING: This name will make your life hell. Proceed anyway?” This allows you to access Hard Mode. Hard Mode ends at the end of the Ruins section. It features stronger monsters, fewer healing items, and altered dialogue. Since you can’t complete the game in Hard Mode, you are allowed to pick a different name when you reset.


Chara – “The true name.”

Murder or Mercy – “That’s a little on-the-nose, isn’t it…?”

AAAAAA – “Not very creative…?”

Bratty – “Like, OK I guess.”

Catty – “Bratty! Bratty! That’s MY name!”

Temmie – “hOI!”

Aaron – “Is this name correct? ;)”

Woshua – “Clean name.”

Metta, Mett, or Mtt – “OOOOH!!! ARE YOU PROMOTING MY BRAND?”

Jerry – “Jerry.”

Papyru – “I’LL ALLOW IT!!!!”

Alphy – “Uh…. OK?”

Napsta or Blook – “………… (They are powerless to stop you.)”

Bpants – “You are really scraping the bottom of the barrel.”

Gerson – “Wah ha ha! Why not?”

Shyren – “…?”


Drak, Gigi, or Gugu – No message; the item Steak in the Shape of Mettaton’s Face, which is normally abbreviated in the inventory as FaceSteak, will instead be abbreviated as Fsteak. This is a nod to the webcomic Hiimdaisy’s parody of Persona 4, in which Chie is obsessed with steak and picks “Fsteak” as a word beginning with F. (“Fsteak” later appeared in Persona 4 Golden as part of a line said by Marie, which is both a legitimate translation of the Japanese dialogue and a nod to the comic.) The creator of Hiimdaisy, Gigi DG, worked on art and testing for Undertale.


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