Nintendo responded to the removal of the Dolphin Simulator: it is illegal to be able to play cracking games.

Thanks to CTOnews.com netizens for the delivery of clues on the way! CTOnews.com May 30, the dolphin simulator was scheduled to be released on Steam on May 27, but its developers announced that the release plan was "postponed indefinitely because Nintendo issued a stop and prohibition order to the dolphin simulator's Steam page under the Digital Millennium copyright Act (DMCA)", resulting in the dolphin simulator's Steam page being deleted. The legitimacy of the simulator has always been a grey area, and the dolphin simulator uses Wii's universal key in the simulator, which means that anti-piracy measures can be actively bypassed.

In a legal notice issued by Nintendo, Nintendo said the dolphin simulator used "unauthorized encryption keys and decrypted ROM files during or before running. As a result, the use of dolphin simulators illegally bypasses a technical measure to effectively control access to works protected by copyright law."

In addition, a Nintendo spokesman told Kotaku: "Nintendo is committed to protecting the hard work and creativity of video game engineers and developers. The simulator illegally bypassed Nintendo's protections and ran illegally copied games. Using illegal simulators or illegally copied games can damage development and eventually stifle innovation. Nintendo respects the intellectual property rights of other companies and expects them to do the same. "

As of CTOnews.com, the dolphin simulator has not responded to Nintendo's allegations that it used the Wii universal key.