Answer: 100 million
More information: In early 2019 Sony stated that it has sold over 91.6 million PS4's, as well as almost 900 million games for the console.
More information: As can probably be ascertained by his simple appearance, Kirby is the one that was original intended to be a circular placeholder for another character.
Answer: Corrupted Blood
More information: 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: Artificial Intelligence
More information: Since classic games like "Space Invaders", "Galaxian" and "Pac-Man" successfully implemented artificial intelligence decades ago, it was become a stable in the videogame industry.
Answer: Mortal Kombat
More information: Ed Boon and John Tobias are more famous than the average videogame designers, as there is a well-known character named after them (Noob Saibot) who is part of the "Mortal Kombat" franchise, which they originated.
Answer: Liu Kang
More information: Arguably the most-memorable fatality from the classic days of "Mortal Kombat" is Liu Kang's ability to transform into a dragon and bite his opponent in half.
Answer: Lara Croft
More information: Lara Croft's traditionally-large bosom was actually the result of a coding error made by the programmer of the original "Tombraider" game.
Answer: Poké ball
More information: Poké balls are used to used to catch and store Pokémon to be later traded or used in battle.
Answer: Gold farming
More information: Some people, particularly in developing countries, actually make a livable income from gold mining videogame currencies.