Dr. Chaos, officially known as Dr. Chaos: Hell's Gate (ドクター・カオス 地獄の扉, Dokutā Kaosu: Jigoku no Tobira?) in Japan, is an action-adventure game originally released in Japan for the Family Computer Disk System in 1987 by Pony Inc. An English localization was produced for the Nintendo Entertainment System that was released in North America by FCI in 1988.

Dr. Jekyll and Mr. Hyde (ジーキル博士の彷魔が刻 Jekyll Hakase no Hōma ga Toki?) is a 1988 side-scrolling action video game for the Nintendo Entertainment System loosely based on the novel Strange Case of Dr Jekyll and Mr Hyde.[2] Gameplay alternates between the characters of Dr. Jekyll and Mr. Hyde based on the player's ability to either avoid or cause damage.

Dr. Mario (ドクターマリオ, Dokutā Mario?) (Often stylized as D℞. Mario) is a 1990 Mario arcade-style action puzzle video game designed by Gunpei Yokoi and produced by Takahiro Harada. Nintendo developed and published the game for the Nintendo Entertainment System and Game Boy consoles. The game's soundtrack was composed by Hirokazu Tanaka. The game focuses on the player character Mario, who assumes the role of a doctor and is tasked with eradicating deadly viruses. In this falling block puzzle game, the player's objective is to destroy the viruses populating the on-screen playing field by using colored capsules that are dropped into the field. The player manipulates the capsules as they fall so that they are aligned with viruses of matching colors, which removes them from play. The player progresses through the game by eliminating all the viruses on the screen in each level. Dr. Mario received positive reception, appearing on several "Best Nintendo Games of All Time" lists. The game was either ported, remade, or has had a sequel on every Nintendo home console since the NES as well as most portable consoles, including a re-release in 2004 on the Game Boy Advance as part of the Classic NES Series. Modified versions of Dr. Mario were included as minigames in WarioWare, Inc.: Mega Microgames! and Brain Age 2: More Training in Minutes a Day!.

Drac, from the Latin draco, is the word for dragon or devil in several languages, such as Catalan and Romanian. Drac or DRAC may also refer to: Drac, abbreviation for the orchid genus Dracula Drac, nickname of the trans-Neptunian object 2008 KV42 Drac, fictional language of the Dracs, alien species in Barry B. Longyear's The Enemy Papers trilogy Drac River, waterway in France, tributary of the Isère Le Drac, dragon-like beast that, according to French folklore, terrorised the town of Beaucaire, France DRAC (Dynamic Relay Authorization Control), daemon that dynamically updates a relay authorization map for sendmail Dell DRAC (Dell Remote Access Controller), remote access card available in many models of Dell servers Direction régionale des affaires culturelles, French regional heritage service

Dragon Ball (ドラゴンボール, Doragon Bōru) is a Japanese manga series written and illustrated by Akira Toriyama. It was originally serialized in Weekly Shōnen Jump from 1984 to 1995, with the 519 individual chapters published into 42 tankōbon volumes by Shueisha. Dragon Ball was initially inspired by the classical Chinese novel Journey to the West. The series follows the adventures of the protagonist, Goku, from his childhood through adulthood as he trains in martial arts and explores the world in search of the seven orbs known as the Dragon Balls, which summon a wish-granting dragon when gathered. Along his journey, Goku makes several friends and battles a wide variety of villains, many of whom also seek the Dragon Balls. The 42 tankōbon have been adapted into two anime series produced by Toei Animation: Dragon Ball and Dragon Ball Z, which together were broadcast in Japan from 1986 to 1996. Additionally, Toei has developed eighteen animated feature films and three television specials, as well as an anime sequel titled Dragon Ball GT, which takes place after the events of the manga. From 2009 to 2011, Toei broadcast a revised, faster-paced version of Dragon Ball Z under the title Dragon Ball Kai, in which most of the original version's footage not featured in the manga was removed. Several companies have developed various types of merchandising based on the series leading to a large media franchise that includes films, both animated and live-action, collectible trading card games, numerous action figures, along with several collections of soundtracks and a large number of video games. The manga series was licensed for an English-language release in North America by Viz Media, in the United Kingdom by Gollancz Manga, and Australia and New Zealand by Madman Entertainment. The entire anime series was licensed by Funimation Entertainment for an English-language release in the United States, although the series has not always been dubbed by the same studio. There have been many films of the franchise including the first live-action film adaptation being produced in 1989 in Taiwan. In 2002, 20th Century Fox acquired the rights to produce an American-made live-action film titled Dragonball Evolution that received a negative reception from critics and fans; the movie was released on April 10, 2009 in the United States. Since its release, Dragon Ball has become one of the most successful manga and anime series of all time. The manga's 42 volumes have sold over 156 million copies in Japan and more than 230 million copies worldwide, making it the second best-selling manga series in history. Reviewers have praised the art, characterization, and humor of the story. It is widely regarded as one of the greatest manga series ever made, with many manga artists such as Eiichiro Oda (One Piece), Masashi Kishimoto (Naruto), Tite Kubo (Bleach), Hiro Mashima (Rave Master, Fairy Tail) and Kentaro Yabuki (Black Cat) citing Dragon Ball as a source of inspiration for their own now popular works. The anime, particularly Dragon Ball Z, is also highly popular in various countries and was arguably one of the most influential in boosting the popularity of Japanese animation in Western culture.

Dragon Ball Z (ドラゴンボールZ(ゼット), Doragon Bōru Zetto, commonly abbreviated as DBZ) is a Japanese anime television series produced by Toei Animation. Dragon Ball Z is the sequel to the Dragon Ball anime and adapts the last 325 chapters of the original 519-chapter Dragon Ball manga series created by Akira Toriyama, that were published from 1988 to 1995 in Weekly Shōnen Jump. Dragon Ball Z first aired in Japan from April 25, 1989 to January 31, 1996 on Fuji TV, before being dubbed in several territories around the world, including the United States, Australia, Europe, India, and Latin America. Dragon Ball Z details the continuing adventure of Goku as a young adult and father to his son Gohan. After learning he is a Saiyan, Goku dies and is revived after training in the afterlife under the god North Kaiō. Goku defends Earth from the Saiyans under Vegeta, and leaves Earth to ultimately defeat them again and the galactic tyrant Frieza. Three years later an evil life form called Cell holds a fighting tournament to decide the fate of the Earth. Goku sacrifices his own life and Gohan avenges his father by defeating Cell. Seven years later, Goku is revived and quickly drawn into a fight against a magical being named Majin Buu. After numerous battles, destruction and recreation of the Earth, Goku destroys Buu with the energy of everyone on Earth making a very powerful attack called "Spirit Bomb". Due to the success of the anime in America, the manga comprising Dragon Ball Z was released by Viz Media under the title Dragon Ball Z. Additional manga works, called animanga, were released which adapt the animation to manga form. Dragon Ball Z's popularity has spawned numerous releases which have come to represent the majority of content in the Dragon Ball universe; including 14 movies and 57 video games and a host of soundtracks stemming from this material. Dragon Ball Z remains a cultural icon through numerous adaptations, including a remastered broadcast as Dragon Ball Kai from 2009 to 2011 and from 2014 onwards.

Dragon Buster (ドラゴンバスター, Doragon Basutā) is a platform dungeon crawl action role-playing arcade game that was released by Namco in 1985 (despite being copyrighted as 1984). It runs on Namco Pac-Land hardware, modified to support vertical scrolling. In Japan, the game was ported to the Family Computer, MSX and Sharp X68000; the latter version was later released for the Virtual Console in the same region on November 18, 2008. Dragon Buster has been ported for the PSP and is available as part of Namco Museum Battle Collection. It was followed by a Japan-only Famicom sequel, Dragon Buster II: Yami no Fūin, and was later followed by the PlayStation game Dragon Valor. The game featured side-scrolling platform gameplay and a "world view" map similar to the later Super Mario Bros. series. Dragon Buster was also the earliest game to feature a double-jump mechanic.

Dragon Fighter (ドラゴンファイター?) is a fantasy-themed side-scrolling action game developed by Natsume for the Nintendo Entertainment System. It was first published in Japan by Towa Chiki in 1990 and in North America by SOFEL in 1992.

Dragon Quest (Japanese: ドラゴンクエスト, Hepburn: Doragon Kuesuto), published as Dragon Warrior in North America until 2005, is a series of internationally best-selling console role-playing video game (RPG) titles created by Yuji Horii and his studio, Armor Project. The series is published by Square Enix (formerly Enix), with localized versions of later installments for the Nintendo DS (NDS) being published by Nintendo outside of Japan. The first title was published in 1986 and there are currently ten main-series titles and numerous spin-off games. Nearly every game in the main series has either an anime or manga adaptation, or both. The series has had a significant impact on the development of console RPGs, and introduced a number of features to the genre. Installments of the series have appeared on MSX computers, Nintendo Entertainment System, Super Nintendo Entertainment System, Game Boy Color, Game Boy Advance, Nintendo DS, PlayStation, PlayStation 2 and Wii video game consoles, and several models of mobile phones. Each Dragon Quest video game soundtrack is arranged into an orchestral piece and the video game series is the first to have live-action ballet adaptations. Early in the series the Dragon Quest games were released under the title Dragon Warrior in North America to avoid trademark conflict with the pen-and-paper role-playing game DragonQuest. Square Enix did not register the Dragon Quest trademark for use in the United States until 2002. The basic premise of most Dragon Quest titles is to play a hero who is out to save the land from peril at the hands of a powerful evil enemy, with the hero usually accompanied by a group of party members. Common elements persist throughout the series and its spinoff titles: turn-based combat; recurring monsters, including the Slime, which became the series' mascot until the English version of Dragon Quest VIII: Journey of the Cursed King; a text-based menu system; and random encounters (in the main series), until Dragon Quest IX: Sentinels of the Starry Skies. The series is one of the few long-running video game series to have a stable key development team; scenario writer and game designer Yuji Horii, character designer Akira Toriyama and music composer Koichi Sugiyama have handled their respective roles from the beginning of the series. The original concepts, used since the first game, took elements from the western RPGs Wizardry and Ultima. A great deal of care was taken to make the gameplay intuitive so that players could easily start to play the game. The series features a number of religious overtones which were heavily censored in the NES versions. Dragon Quest X is the newest game in the series. It is a massively multiplayer online game, featuring online battles. It has currently been released in Japan on the Wii, Wii U, and Microsoft Windows.