Answer: Nintendo The PlayStation was originally a CD-ROM add-on for the Super Nintendo. Nintendo pulling out of the deal in 1991 prompted Sony to eventually produce it on their own.
Answer: Corrupted Blood Corrupted Blood was intentionally introduced to the "World of Warcraft" by its programmers via a supervillian, but it soon spread out of control and could only be eradicated by game patches and resets.
Answer: Plumbers Since the release of the original "Mario Bros." in 1983, it has been established that Mario (and Luigi) is an Italian-American plumber.
Answer: Adventure A fact made famous by the movie "Ready Player One", "Adventure", a game released on the old Atari 2600 in 1979, had the first Easter egg, which was the name of its creator hidden in the game.