Kai Cenat and IShowSpeed to Attempt Super Mario Bros. Marathon Live

Image: Kai Cenat and IShowSpeed/Super Mario Bros.

Popular streamers Kai Cenat and IShowSpeed are teaming up once again, this time for a Super Mario Bros. marathon that will be streamed live in one continuous session starting today, June 25. The goal? Beat the entire game in a single sitting — no matter how long it takes.

The stream is scheduled to begin at 4 PM EST (1 PM PT / 9 PM BST) and will be broadcast on Kai’s Twitch channel and Speed’s YouTube channel.

While early buzz on social media suggested the duo might take on every Super Mario title — which would be a jaw-dropping 24 games — Kai quickly cleared things up. “There’s one game that we are doing,” he said, “and then we’re going to see how y’all like it, alright? Doing the entire [series] is crazy.”

This isn’t the first time Kai and Speed have taken on wild gaming challenges together. Back in December 2024, the pair attempted a no-break Fortnite stream, staying live until they finally secured a win after 80 matches — nearly 48 hours later.

And who could forget their July 2024 stream of Chained Together, where they played the entire game while literally shackled to each other for 12 hours.

Then they’ve also tackled an intense 105-hour Minecraft Hardcore stream in August, a challenge that ultimately saw them defeat the Ender Dragon after days of setbacks and suspense.

Now, with the Super Mario Bros. challenge on the horizon, fans are already buzzing with excitement. Whether it's the original NES classic or a more modern title remains to be seen, but one thing is certain — it’s going to be another wild ride.