
Although the R4 can run all sorts of homebrew, most use it exclusively to play pirated games, and Nintendo had noticed.
Today the Tokyo District Court has granted an injunction banning sales of the device is Japan.
Most outlets, including online retailers, have already stopped selling the R4, citing pressure from the lawsuit, but the ruling now makes sales of the device illegal in the region.
The 55 companies added that they will now try to halt sales of similar devices, such as the M3.