As somebody who still hasn't pirated SS, Greninja (and various other Pokemon in the prototype) are using their old 3DS or Let's Go textures, which don't quite work with the lighting of SS. Now, they almost certainly did update the model files to the new format, and given how little work it would have taken I'm wondering why they didn't just update all the Kanto Pokemon's textures for the DLCs because it seems like the least amount of work, but I guess they wanted to prioritize newer Pokemon instead which is a reasonable decision.
>>46995419It's a graphical glitch because it wasn't fully implemented, it was only partially implemented. It's there for testing, and is only done enough so the game doesn't crash (and I dunno if even that's for certain, it could crash if you bigmax it for all I know).
