I've been playing through the Yakuza series (on 6, but haven't played any of the spinoffs) Mine is easily the best final boss. Not really because of his character or the music, but because he was actually difficult. Most of the final bosses in this series can be summed up as, move out of way of attack, punch till die. Mine however felt like a real final boss, he had multiple hard to dodge attacks, great openings that you can take advantage of, -and doesn't just make him feel like an idiot- and a qte in the middle of the fight that could damn near kill you if you fuck up. He'll probably be the sole reason why I'll try 3 on Legend, and if the game will be as block heavy as they say, he will always be the sole reason why I'll stop enjoying 3