Board Thread:Off Topic/@comment-25396609-20180128214516/@comment-25396609-20180130024313

Ninja means they beat you to the punch; posted something explaining the same thing before you did.

The personas are not themselves characters that I know of; they're to my knowledge an extension of a character, so no you cannot. The challenge is to allude to the character WITHOUT copying them; aesthetic choices, elements of the personality without taking the whole thing, their weapons, things like that.

Only if they appear in the game as more than a cameo.