[Masahiro Sakurai said: The reason why copyrighted works are boring is because the original works limit the design of the game] Masahiro Sakurai said in his latest program that the main reason why people usually find copyrighted works (fan works) boring is because The original limited the design of the game. When creating, developers need to consider the feelings of fans, and it is difficult to change the inherent settings. Therefore, the biggest design pursuit of this type of work is to conform to the original work and respond to the desires of fans. Its commercial nature is greater than its game quality, so it will be very difficult to take both into account. But there are also successful cases, such as the "Naruto: Ultimate Storm" series. Or like "Mini Tensei" (originally a novel), there is a good compatibility between the original work and the gamification.