Definitely a result of recency bias here, but in a couple of scenes in Tears of the Kingdom, Ganondorf is flanked by two female Gerudo with unique outfits. If you translate the Hylian text on these outfits, they say Koume and Koutake.

Divinity Original Sin Mario + Rabbids: Kingdom Battle Yoshi’s Crafted World Skyrim Ixion (I definitely wanna go back to this, though) Donkey Kong Country (all 3) Fallout: New Vegas Fallout 4 (at least, I don’t THINK I got a credits roll) Space Chem

Email requirements for registration are set per-instance. Beyond that, it’s my understanding that only a user’s existence is shared across instances, in order to attach you to your content. Your registration details stay on the instance you belong to.