Nintendo is seemingly able to write their own laws at this point, and both the Japanese and the American justice systems will give them anything they want. Throwback to the 80s and 90s when we legally determined that if you purchase a video game and a console, you are allowed to do anything you want with both of those things. Because you paid for them, so modifying or reverse engineering them was legally protected. We've just slowly been marching backward ever since then.