A few weeks ago, it was reported that a Splatoon 2 hacker had utilized an over-the-top method to beg Nintendo to add anti-cheat to their game. He had broken the leaderboards by hacking them to show the top results as "Please, Add, Anti, Cheat", making an attempt to get attention to the matter, and asking Nintendo to do something, whilst getting banned in the process. Coverage of the incident made its way to multiple gaming sites, but after the initial incident, it was assumed that nothing happened.
Now, according to the Splatoon Modding Hub, as of a little over a month ago, Nintendo actually did implement an anti-cheat for Splatoon 2. While the anti-cheat method had been in place, reportedly, it was merely in a test phase, until being rolled out as of recently. Starting the game with any mods present and going online will supposedly "flag" your console, and after a day, Nintendo will ban you.
Nintendo has introduced integrity checks in Splatoon 2 since version 3.1.0. [...]
(Khangaroo from Splatoon Modding Hub) has discovered this, I am now publishing this post. For Nintendo's sake, I won't be going into detail about how it works as of yet. It seems that bans are applied one day after the game flags you.
Beware: the game will flag you regardless if you use the mods online. Simply starting the game with edits is enough to flag you.
The following activites are probably still safe:
Note that the above activites aren't guaranteed to be safe in the future.
- Model edits
- Music replacement
- Text mods
- Save edits, provided what you are doing can be considered as legitimate
- and more...