A modder has demonstrated a jailbreak for the Nintendo Switch 2 that uses an existing game as part of the process, with help from AI coding tool OpenAI’s Codex. The result has already been used to show a customized version of Mario Kart World, though the method appears complicated and its wider impact is still uncertain.
What the jailbreak makes possible
The jailbreak, called “ns2jb,” was credited to Sammy Hajhamid, who also goes by “pepsipu.” A demonstration showed a modified Mario Kart World with characters including Cinnamoroll, the red Angry Bird, Peter Griffin, and Steve from Minecraft.
That example offers a glimpse of what custom software might enable on the console. It does not, by itself, establish how broadly the jailbreak can be used or what other changes it might support. The available description centers on the custom game demonstration, while the full impact has yet to become clear.
Why SmileBASIC 4 matters
The exploit is described as software-only and tethered. In practical terms, the tethered part means users need to launch the jailbreak from a game each time they turn on the console for the jailbreak to work.
The process requires SmileBASIC 4, a game that lets users program and play games. Another modder has said the title is “not strictly needed,” so its precise role may not be settled. Still, the reported method makes clear that this is not presented as a simple, persistent change that works automatically after setup.
That reliance on a game shapes the experience. Anyone trying the method would need access to the required software and would have to repeat the launch step after powering the console on. Those requirements help explain why the jailbreak is described as extremely complex for most people.
AI’s role in the work
Hajhamid said OpenAI’s Codex helped make ns2jb. That puts AI assistance alongside the technical work behind this particular exploit, but the report does not describe exactly which parts of the process Codex handled.
The example has prompted speculation about whether modders could use AI to help develop further exploits. That possibility is being discussed, rather than established as a result of this jailbreak. The available information supports a narrower conclusion: AI helped with this effort, and modders may explore similar assistance in future work.
A first step, with open questions
People discussing the jailbreak on the Switch 2 hacks subreddit are debating how significant it is. That uncertainty reflects the limits of what has been shown so far: a tethered, game-based exploit and a customized Mario Kart World demonstration.
The development could mark the start of further Switch 2 exploits, especially if modders continue to use AI as part of their work. But the report does not establish what might follow or how accessible later methods would be. For now, ns2jb is an early demonstration with a demanding setup and an unclear broader impact.