YouTube user PangaeaPanga had recently gotten an e-mail from Nintendo on his channel content, claiming the following:
We wish to inform you that the videos in question infringe Nintendo’s copyrights. As the owner of the copyright in the games: Mario Kart 8, Super Mario World, and Pokémon, Nintendo has the exclusive right to perform the games publicly or to make derivative works based on the games. By making a derivative work using Nintendo’s IP, and then displaying Nintendo’s IP on your YouTube channel, you have violated Nintendo’s exclusive rights.
Nintendo understands that its fans are the reason for its success, and we are always happy to see people share their passion for Nintendo’s games. At the same time, Nintendo’s intellectual property constitutes its most valuable assets, and the unauthorized use of these assets jeopardizes Nintendo’s rights. Because of this, we ask that you please remove the video in question from your channel, and confirm that you will not post any videos using unauthorized software or copies of games, distribute or continue work on the modification, or take any other steps that would infringe Nintendo’s rights.
Nintendo encourages fan engagement on YouTube through the Nintendo Creators Program. Under the program, participants are granted a license to use Nintendo’s characters, games, and other intellectual property, subject to the Code of Conduct included with the agreement. However, please note that this Code of Conduct prohibits you, among other things, from posting any content using unauthorized software or copies of games. This includes videos featuring tool-assisted speedruns, which require making a copy of a game’s ROM file, and running the copied ROM through an emulator. If you are interested in learning more about the Nintendo Creators Program, please see: https://r.ncp.nintendo.net/
Thank you for your understanding.
Nintendo Anti-Piracy Team
The definition of piracy is unauthorized use of another’s work–similarly to plagiarism–and it is a copyright infringement. Once someone holds the copyright to a certain thing, only they are able to set rules on what could or could not be done with it; failure to abide those rules could result in facing major legal issues, such as lawsuits.