A recent firmware update for the Nintendo Switch 2 has introduced a new restriction for physical game owners. It has been discovered that Super Mario Bros. Wonder now requires an internet connection to launch, even from a physical game card, following the system’s update to version 20.2.0.
The change has been confirmed by users in both Europe and North America. While other first-party titles still work offline, Wonder now displays an unskippable update prompt unless the system is connected to the internet.
This development ties into Switch 2’s backward compatibility with Switch 1 games, which originally required a firmware update only available online. The new Super Mario Party Jamboree includes the necessary firmware on the cartridge, offering offline access to compatibility features. However, installing it also triggers the requirement for Wonder to be updated before launch.
Meanwhile, Donkey Kong Bananza still lacks the latest firmware, keeping it dependent on an online update for compatibility.
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