by StickFightingman
Undertale Fighting Game Codes
Working Undertale Fighting Game Codes
Last updated August 21, 2026
No working codes right now
We're tracking Undertale Fighting Game and will list codes here the moment the developers release them. If you spot one first, send it our way below.
How to redeem codes in Undertale Fighting Game
- Launch Undertale Fighting Game on Roblox.
- Look for a Codes, Shop or settings button — usually on the side of the screen.
- Paste the code exactly as shown above. Codes are case-sensitive.
- Press redeem to claim your reward.
Codes expire without warning — if one fails, it was almost certainly pulled by the developer.
Found a code we're missing?
Submit it and we'll verify it before it goes live.
About Undertale Fighting Game
Undertale Fighting game is a game where you can fight other players with characters from Undertale, Glitchtale, Xtale/Underverse or miscellaneous characters. This game is still in development, expect bugs. Press or hold L on your opponent to lock on Characters: Glitchtale Frisk, Sans, Omori, Undyne, Cross/XChara, Misaka, Gaster, Asgore, Betty Noire Credits: StickFightingman - Scripter unlinkedspirit1180 - Modeler eme246 - Animator duck.enough & marcmgr - Thumbnail Artist