Once the training wheels are off, Yakuza transforms into an almost immersive simulation of the Japanese streets of the 80s. The world is dense and feels lived in. Exploring Kamurocho and Sotenbori can be quite amusing as the game throws various side activities at you including ones that you wont even see coming. These activities fall in various shades of eccentricity. The absurdity is not derived just from the type of missions there are, like- protecting Miracle Johnson as he moonwalks across the city, finding lost pants, assisting a pervert, etc. Kiryus usually stoic expressions that transform while he performs passionately on the Karaoke can be wonderfully amusing to watch as well.
Source: N4G PC Games Of The Decade #23: Yakuza 0 Is A Masterful Juggler Of Tones