So nintendo and palworld are based in Japan which has no fair use on copyright.
If this became a copyright case in Japan and palworld won it could change the law on copyright fair use in, which Nintendo and other corps don’t want as it would open up new games based on their products under fair use.
The only way Nintendo can attack palworld is via patent infringement.
Looking at an unfinished game is the equivalent of looking at an unfinished painting, your seeing the first brush strokes maybe some sketches but you have no realistic idea what the end result will be like.
Looking at leaks is a pontless waste of time, the fact they included personal information just makes the “hackers” scummy
Think I have about 1000 hours in Isaac