Reference to the Metal Gear Solid series (Yakuza: Kiwami 2)
The title of the topic you understand, I found 3 references to the game series MGS. Of course, it will be understood only fans of the Metal Gear series. And you are a fan of?
Okay, reluctance to create a separate theme for Easter eggs.
Just about videotapes:
"Yakuza Heartbreak" - a reference to Yakuza 0.
"Batshit crazy" - a reference to Yakuza Kiwami.
"Sinking ship" - "Titanic".
Chapter 6 battle with the Man in black boss (in the last phase of the fight) - a reference to the movie "Tuxedo" with Jackie Chan (2002)
Some of the thugs wear a yellow biker suit, like Bruce Lee's character in the movie game "(1978)
In the arena of the Colosseum in Purgatory, you can meet the fighter Akira Yamaoka - the same name of the composer of the series" Silent hill ".
There are those that I tend to pull by the ears.
In vending machines you can buy Suntory mineral water - a real brand.
The fast food chain Smile King sells a burker "King Burger" - if you swap the words, you get the name of a real fast food chain.