I have never owned a Wii or 3ds, but I do saw my classmate playing it.
I sincerely hope there can be a torrent file that accidentally contains those data, maybe along with some simulators, and f*ck those copyright limitations.
Donating those data to a history is a good choice. But in my (aggressive) opinion, it's useless unless the public can get their hands on those data and make use of them.
Anyway, this man is a real hero.
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I bought EVERY Nintendo Wii U & 3DS game before the Nintendo eShop closes https://youtu.be/ujHUMG0Uovs