Working Undertale: Fighting World Codes
Last updated August 22, 2026
No working codes right now
We're tracking Undertale: Fighting World 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 World
- Launch Undertale: Fighting World 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 World
[BETA] [WARNING] This game is in an early stage of development and therefore it is possible that some things may not work as desired and there may be possible changes to characters in the future. In this game it's kill or be killed Undertale: Fighting World is a game where you can play in a free-for-all arena using different characters with which you can fill your ultimate gauge that will allow you to make lethal attacks or access specific phases. Characters at the moment: Asriel, Undyne, Toriel, Sans, HATE. Upcoming updates: Chara (Undertale Character) Papyrus (Undertale Character) Fire Warrior (Game Character) Tags: Undertale Deltarune Glitchtale Fighting World Sans Papyrus Chara Frisk Batteground Love