Ryuu ga Gotoku 0 Kihon Muryou App

The game tells you about the events at the beginning of Yakuza 0, then it cuts to the 'Bed of Styx', and underground coliseum in Sotenbori (based on real Life Dotonbori) where Kiryu and Majima can fight for glory.

An application released for PS Vita with some minigames and a reconstruction of Yakuza 0's arena.
Some Arcade games were released as DLCs, such as Super Monkey Ball: Banana Splitz.