In response to the popularity of shared game clips, let's play videos and live streams, Nintendo launched a Creators Program that intended to reduce profits when people made content with their games. The policy started in 2013 with Content ID Match Requirements on YouTube before the program was officially launched in 201
What does it mean in practice? A simple set of guidelines closer to the approaches to Sony and Microsoft. Although it's not completely free for everyone – Nintendo said in particular that it still can and will take videos as it perceives violating these policies – content creators who earn money on platforms like YouTube, Twitch, Facebook, NicoNico Live, or Twitter can move forward and post videos of games.
The relationship is that unless they are created using system sharing features, they should "include creative input and comments" instead of just raw video and nothing else. It also does not exclude content from pirated games or games that are not officially released yet. Super Smash Brothers Ultimate We're Looking At You).