How is Batman a new IP?
If we're talking about the character specifically, I think it's obviously Mii. Microsoft cemented this by saying "Mii too" and making Avatars. Miis and Avatars were playable characters in many of the best-selling games on their respective consoles. They all look different, but they are instantly recognizable by their shared style.
Again, not the games themselves. The character(s).








