Kyoto Police have referred four men to prosecutors on suspicion of breaking Japan’s Trademark Act, following an investigation into the sale of modified Nintendo Switch consoles. The case was reported by Kyoto Shimbun on March 19.
According to investigators cited by NTV, the group modified around 45 Nintendo Switch units to run pirated games and to deliver what they described as “improved performance.” Of those, about 15 consoles were actually sold through social media platforms. The group is estimated to have made between 600,000 and 900,000 yen in revenue, which works out to roughly $3,700 to $5,600 USD.

Authorities determined that the activity infringed on Nintendo’s trademark rights. All four men have admitted to the charges. Japanese media has drawn attention to how young the group members are. Two of them are 18 and 19 years old, one is in his 20s, and the suspected ringleader is in his 30s.
This is not the first time something like this has happened in Japan. Back in January 2025, a man in his 50s was arrested under similar circumstances after selling Nintendo Switches modified to play pirated games, a case that domestic media described as “a new precedent” at the time.




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