It looks like I didn't change the powers of the Ninny for the Korean version, and its powers do change upon crossing the river. Since this change in powers is designed to stop the Ninny from entering its own Ivory Tower while allowing it to attack the opponent's Brain in its Ivory Tower, it probably wouldn't be a good idea to go with a strictly Korean version that gives the Ninny the same powers of movement anywhere on the board.
It looks like I didn't change the powers of the Ninny for the Korean version, and its powers do change upon crossing the river. Since this change in powers is designed to stop the Ninny from entering its own Ivory Tower while allowing it to attack the opponent's Brain in its Ivory Tower, it probably wouldn't be a good idea to go with a strictly Korean version that gives the Ninny the same powers of movement anywhere on the board.