Current Datamines: (Updated 2025-01-22)

This information is based on data found in MY HERO ULTRA RUMBLE itself. Remember, nothing here is confirmation of anything releasing sooner or later, and is subject to change at any time.
So far datamines from UltraRumble.com have been consistently correct with releases and nothing has been wrong. Things found in the past in previous seasons have in fact released in the following seasons.
(Eg. Twice and All for One found prior in Season 2, released in Season 3/4. Mirio and Dabi's Quirk Set found in Season 4, released/releasing in Season 5.)


New Game Mode Data

Code Name: SQUAD_KINGS_BATTLE

Game Mode Name: LEADERS BATTLE

Description: 仲間と連携しリーダーを守り抜け! - Work with your friends to protect your leader!

There are JSON data files as well for this mode similarly to the existing modes that are playable in-game. On 2024-03-27, this data was removed. This data was re-added as of 2024-09-25.


All Future Quirk Sets! Official Translations for Supported Languages! (UPDATED)

Added to MasterData as of 2024-09-25. Removed from MasterData on 2024-11-20

Click here to view the detailed X (Twitter) post from HydrosPlays, listing of the Quirk Skill Set (Variations)

Previously, the quirk set list Hydros found was only in the variants table of the data, which was only given in Japanese. As of 2024-09-25, the variants table data was removed, but all future quirk set releases have been added to the language master data for all supported languages. Hawks and Present Mic quirk sets are also included.

Note: These are subject to change at any point. The order of these quirk sets is not guaranteed to happen in this order specifically.


Characters with Unreleased Game Original Costumes, Release dates are unknown.

Added to each character's UAsset files mesh mappings on 2024-09-25 and 2024-11-20

These would be costumes like the Cyber Hero/Cyber Punk, Kunoichi/Shinobu, and the General/Knights.

• Ochaco Uraraka (Ch003) OrI1 - New Original Costume Design
• Shota Aizawa (Ch013) OrC1 - General Costume
• Dabi (Ch017) OrE1 - Knight Costume
• Himiko Toga (Ch018) OrE1 - Knight Costume
• Mt. Lady (Ch100) OrF1 - New Original Costume Design

Note: This is subject to change at any point. This is NOT confirmation of anything releasing right now.


Season 10 Potential Character! Kurogiri released Season 9

DamageParamTable JSON file in the Game PAK files, was updated on 2024-11-20

There are large changes made to the DamageParamTable JSON file, where Kurogiri (Ch103) and Shinso (Ch105) have the most drastic changes made to their skill data. There is no particular order known. To add, Ch104 (Monoma) did not have any drastic changes like the other two did.
In the image, I have provided some JSON diffs, which basically is comparing the two files (Old vs New) and seeing what specifically changed. The "Old" file is from 9/25/2024, the Start of Season 7. And the "New" file is from 11/20/2024, which was the start of Season 8. Even with the update during Season 7 mid season, these drastic changes are still there and have not been referenced until now

Note: This is subject to change at any point. This is NOT confirmation of anything at this time.
Thanks to SB for mentioning it so I could investigate further.


New Quirk Set data entries found!

AssetRegistry.bin, UAsset File Mappings, MagazineParamTable.json, and DamageParamTable.json files updated as of 2025/01/22.

Entries found for Ochaco Uraraka (Ch003), Itsuka Kendo (Ch046), All Might (Ch012), Aizawa (Ch013), and Endeavor (Ch023).

It is likely that for the 1.5 Year Anniversary (Half Anniversary), we will see a double quirk set release again. Last year, the half anniversary was during Season 4, this year it will be during Season 10. No guarantee 2 quirk set releases will happen, this is based on what they did last year. With that in mind, the two with the most quirk set entry data are Ochaco and Kendo currently. All Might is the next one with the most entry data. Aizawa and Endeavor have the bare minimum entry data. The speculation is that Ochaco and Kendo will be the 2 quirk sets released in Season 10 for Half Anniversary (1.5yr). All Might possibly will be Season 11, and Aizawa and Endeavor will release sometime after that. Things may change so keep that in mind.

Note: This is subject to change at any point. This is NOT confirmation of anything releasing right now.


Unreleased Emblems