Last year, Nintendo (and 53 other companies) took action against the makers of the R4 cart, a device which allows, amongst other things, the pirating of games on a DS. Today, they won big.
https://lastchance.cc/nintendo-and-54-companies-battle-evil-r4-in-court-5030319%3C/a%3E%3C/p%3E
Most outlets have already halted sales of the R4 following pressure from the lawsuit (and the publishers, such as Nintendo & Capcom, backing it), but this ruling now makes it official: you can’t legally sell the thing in Japan.
https://lastchance.cc/is-nintendos-legal-suit-helping-r4-sales-5030798%3C/a%3E%3C/p%3E
It’ll be interesting to see what effect this ruling has on the status of the R4 in other markets.