>>56477555>>56478603That's how patents work in Japan. Anyone can patent anything they want.
In the 80s it lead to random people patenting parts of popular games to demand money from developers who made them. To stop this developers started patenting every part of their games. All devs in Japan own hunderds of patents like these. It's to protect the industry from bad actors from outside.
Nintendo was hit with this as recently as mid 2000s when some random company tried to patent the Wiimote and sue Nintendo.
It's extremely rare the devs sue each other because they all know they are all infringing on each other's patents one way or the other, so there's no point.
The only time when Nintendo sued another dev for patent infringement in the 40 years of their vidya history was in 2017 when Colopl tried to patent a touchscreen joystick (Nintendo had that patent since 2004) to ask all mobile developers to pay them money for using touchscreen joysticks. The case was settled and nobody has to pay for having touchscreen joysticks in their games.
Unless more datails (which we have none at the moment) show otherwise, I'm inclined to believe Nintendo has a reason behind that lawsuit and it isn't just pettiness