King's Knight[b] is a scrolling shooter video game developed and published by Square for the Nintendo Entertainment System and MSX.

[6] King's Knight follows a basic storyline similar to many NES-era role-playing video games: Princess Claire of Olthea has been kidnapped in the Kingdom of Izander, and the player must choose one of the four heroes (the knight/warrior "Ray Jack", the wizard "Kaliva", the monster/gigant "Barusa" and the (kid) thief "Toby") to train and set forth to attack Gargatua Castle, defeat the evil dragon Tolfida and rescue the princess.

[7] King's Knight is a vertically scrolling shooter, where the main objective is to dodge or destroy all onscreen enemies and obstacles.

The opening was modified so that prior to the intro screen, players could specify what type of controller they would like to use (either a keyboard or a joystick).

In the MSX version, the flanks of the screen were "closed off", while the stage maps have moved slightly, and so some of the items appear to be out of their original locations.

The MSX version also boasts a wider range of colors, updated graphics, new monster and boss designs (dragons at the end of caves, for example, were replaced with reptilian monsters), and a new sidebar, which displayed the player's life meter, allocated power-ups, and allocated elements.

The MSX could not smoothly render vertical scrolling though – unlike the Famicom – so the movement of the graphics is very "choppy" in comparison.

In 2017, Square Enix released a remake titled King's Knight: Wrath of the Dark Dragon for iOS and Android.

Seigaku Dennou Kenkyuubu (進め！！静学電脳研究部, Shiawase no katachi), published in the Gamest Comics collection from April 1999, and drawn by Kouta Hirano.

Miller noted that "the underlying gameplay is decent" but described the graphics as "elementary" and "the structure of switching characters is awkward and frustrating".