Mugen Codes (December 2025) [HALLOWEEN]

Updated: December 1, 2025

We checked for new codes!

What a time to be alive! Mugen is a brand new demon-slaying massacre festival fit not only for anime fans but all of us looking for the ultimate abyssal carnage on the Roblox platform. Right now, Mugen is hosted on a restricted server, and it’s available only in hack-and-slash mode.

However, there will be a full-blown RPG version of the game in the future, which is why you must get your Mugen codes as soon as possible since the game heavily relies on Lucky Spins you can get for free via codes. Once you deplete them, check out our Slayer Battlegrounds codes and keep mowing down your foes with the same ferocity.

All Mugen codes list

Active Mugen codes

Expired Mugen codes

• QOLUPDATE
• BLOODISNEXT
• QOLISNEXT
• MISTUPDATE
• SORRY4DELAY
• BIGCODE
• MUGENSBACK
• THUNDER
• THANKS100K
• PLAYTEST
• RELEASE

How to redeem codes in Mugen

Redeeming Mugen codes is extremely simple—all you have to do is follow the steps below:

1. Launch Mugen on Roblox.
2. Once in the game, click on the “Codes” button in your top-left corner.
3. Type your code into the text box of the pop-up window.
4. Press “Enter” on your keyboard and claim your free goodies.

How to get more Mugen Codes

As of right now, the game doesn’t have any social media platforms you can check out when looking for Mugen codes, but this might change once the game is out. The only place you can check is the Pure Pure Roblox group. Luckily, you can bookmark this page and check back for the latest updates regarding codes.

Why are my Mugen Codes not working?

If your Mugen codes are not working, one of three possibilities could occur:

• Expired code: This is the most common reason why your Mugen codes do not work. The majority of codes have a limited life span, and after a while, they become inactive.
• Incorrect code: If you make a typo, your code won’t work. Roblox codes are typically case-sensitive and must be entered the same way as presented. The easiest way to achieve this is by copying and pasting the codes.
• Stray space: Make sure to delete all extra spaces before or after the code since the game won’t accept it.

What is Mugen?

Mugen is a Roblox game made by Pure Pure, also known for major hits like Blue Lock Rivals and Basketball Zero. The game is deeply anime-rooted and similar to other demon-slaying games; it is dynamic, fast-paced, and quite flashy when the combat starts. While this may seem like another click-spam monster-slaying festival, in reality, the game requires some skill and tactics if you plan to survive.

You can enjoy tons of other hot Roblox games that also feature a lot of free goodies, so visit our Roblox codes section and grab them all.