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"This is another attack on physical media": Watchdog group finds that Super Mario Bros Wonder is suddenly unplayable on Switch 2 without an online update
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Super Mario Bros. Wonder
"This is another attack on physical media": Watchdog group finds that Super Mario Bros Wonder is suddenly unplayable on Switch 2 without an online update
Dustin Bailey
24 July 2025
"Nintendo crossed a line"
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(Image credit: Nintendo)
Physical media enthusiasts have been closely eyeing the Switch 2 as they try to figure out how viable the platform is as an entirely offline machine, and thus how easy it'll be to keep using it in not just the years, but the decades to come. The latest Switch 2 firmware has a worrying caveat, as it's completely disabled access to Super Mario Bros. Wonder without an additional patch.
"Can confirm that Nintendo disabled offline playability on SW 2 for Super Mario Bros. Wonder's card between firmware 20.1.1 and the current 20.2.0," according to physical media watchdog DoesItPlay? on Bluesky. "Updated one of our European Switches and now the EU card of Wonder won't start either. Tested several other 1st party titles. No change there."
I can confirm the same thing happens on an NA Switch 2 with the latest firmware installed. I turned off my internet connection, popped my Mario Wonder cart in, and upon trying to launch the game I was hit with an unskippable update prompt.
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Donkey Kong Bananza doesn't have Switch 2's latest firmware on the cart, which means there's still no way to play backwards compatible Switch 1 games without an internet connection
Nintendo Switch 2 backwards compatibility explained
Switch 2 owners using Mig Flash cartridges say Nintendo is bricking their new consoles, even if they're only using the carts for their own ROMs rather than pirated games
Switch 1 backwards compatibility has been the biggest roadblock to offline Switch 2 players, since the feature required a firmware update which up until this week, you would've had to download. Donkey Kong Bananza didn't include that firmware update on-cart, but it turns out that the newly released Switch 2 edition of Super Mario Party Jamboree does, offering a way to get backwards compatibility without going online. Unfortunately, it also breaks the option to play Mario Wonder offline.
"Nintendo crossed a line," DoesItPlay? says in a follow-up post. "Our findings show, they have the power to retroactively block legally bought physical games from working without updates AND THEY DID SO! Multiple times. Following the introduction of Trojan Horse 'game-key card', this is another attack on physical media."
Today, this issue won't matter for the vast majority of Switch 2 players - it's not that hard to find a wi-fi hotspot in 2025, after all. But these kinds of little compatibility issues are starting to become a nightmare on decades-old consoles with online features, and someday when the Switch 2 is itself a retro console, it's going to be a lot harder to access all its features than you might like.
Here are the upcoming Switch 2 games for 2025 and beyond you need to know about.
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Dustin Bailey joined the GamesRadar team as a Staff Writer in May 2022, and is currently based in Missouri. He's been covering games (with occasional dalliances in the worlds of anime and pro wrestling) since 2015, first as a freelancer, then as a news writer at PCGamesN for nearly five years. His love for games was sparked somewhere between Metal Gear Solid 2 and Knights of the Old Republic, and these days you can usually find him splitting his entertainment time between retro gaming, the latest big action-adventure title, or a long haul in American Truck Simulator.
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Donkey Kong Bananza doesn't have Switch 2's latest firmware on the cart, which means there's still no way to play backwards compatible Switch 1 games without an internet connection
Nintendo Switch 2 backwards compatibility explained
Switch 2 owners using Mig Flash cartridges say Nintendo is bricking their new consoles, even if they're only using the carts for their own ROMs rather than pirated games
Despite Switch 2's controversial game-key cards, Nintendo president says "physical games are still a key part of our business"
One week of Switch 2 backwards compatibility: The good, the bad, and the bilinear-filtered ugly
Asked about concerns Switch 2 game-key cards could turn off players and third-party publishers, Nintendo president says the controversial cards were introduced since file sizes have gone up
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