They're being purposely coy though on what this actually means. Backwards compatibility with digital/e-games, or backwards compatible with the physical carts?
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Nintendo also seems to be the least price gouge-y, in terms of lootboxes and microtransactions and other bullshit. Now I wish that didn't come with the tradeoff of them being completely anal when it comes to people posting OSTs online but I guess I'll take it.