They built a viral meme character together. Now they are fighting in federal court over who owns it.
The creators of a Roblox game are suing Mementum Lab to keep using the internet-famous character Tung Tung Sahur.
When an internet joke goes viral, it can make creators rich overnight. But when there is real money on the table, friendship often turns into a fight over who owns the joke.
WHAT HAPPENED
The creators of the Roblox game Steal a Brainrot are suing a company called Mementum Lab in court. They want a judge to rule that Mementum Lab does not own the rights to the viral character Tung Tung Sahur.
The character is a wooden drum with a bat that became a massive hit on TikTok. It is very popular in Roblox games and has led to big money deals.
Mementum Lab sent letters telling the game makers to stop using the character. Now, both sides are asking the court to decide who is the real owner.
FACT BOX
*The character: Tung Tung Sahur, a wooden drum with a bat made with AI help.
- The game: Steal a Brainrot on Roblox.
- The lawsuit: Filed in a United States federal court.
- The conflict: Mementum Lab sent letters telling the game makers to stop using the character.
- The timeline: The next big court hearing is set for September 2026.
WHY IT MATTERS
This case could change how we think about ownership on the internet. Since the character was made with AI help, it is hard to say who actually owns the rights.
If the court rules against the game makers, it could mean that many viral memes we love could be locked behind legal walls. It would make it much harder for small creators to use popular internet jokes.
WHAT HAPPENS NEXT
The two sides will face each other in court. Both sides are filing papers to prove they made the character first.
But they will have to wait a long time for a final answer. The court did not schedule the main hearing until September 2026.
WHAT WE STILL DON'T KNOW
- How much money has the Tung Tung Sahur character actually made so far?
- Who first came up with the idea to use AI to make the wooden drum character?
- Will Roblox ban the game while the court battle is going on?
Transparency notes
Published: Jul 2, 2026. No major post-publication update has been logged.
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Sources
External source links were not provided in this article body. Our editors reference publicly available materials and update stories as new verified information arrives.