More information: Bayonetta, the titular character from the "Bayonetta" series of videogames, is a property of the Sega Corporation.
Answer: Stan Lee
More information: Comic-book visionary Stan Lee, who passed away in 2018, is now featured as a NPC in "World of Warcraft".
More information: The innovative 3DO was released in 1993 but never achieved lasting success due its high price and the popularity of competing consoles.
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: Game Link Cable
More information: The Game Link Cable, released in 1989 alongside the Game Boy, allowed two of these devices to be connected to perform a multitude of functions such as multi-player and item trading.
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.
More information: Non-playable characters (NPCs) are those that players cannot control, though their actions can be influenced.
More information: The original Atari home-console controller had only one bright-red button, complemented by a large black joystick.
Answer: Playing cards
More information: Founded in 1889, Nintendo originally produced traditonal-Japanase playing cards called Hanafuda.
Answer: Square Enix
More information: "Kingdom Hearts" is a collaboration between Disney and Square Enix. Thus it features characters from the classic Final Fantasy series teaming up with the likes of Scrooge McDuck, Buzz Lightyear and Jack Sparrow.