Ok, so, as you might be aware, Like A Dragon: Pirate Yakuza In Hawaii contains some golden balls, and they can belong to Goro Majima. Well, provided he goes around and collects all seven of them as part of a sub-story.
Like A Dragon: Pirate Yakuza in Hawaii's latest patch ensures Goro Majima's golden balls are no longer unobtainable
Source: VG247 (opens in a new tab)