for various "World Heroes" throughout all of history to engage in combat with each other. True to this plot, many of the fighters are based on actual historical figures, while some are fictional ones. List of games in the series Other/canceled games Related releases Fuuma Kotaro appears as a playable character in the 1994 fighting game Aggressors of Dark Kombat, which was also created by ADK. However, some of his moves from the World Heroes series were removed to make him fair enough to fight. Every character from the World Heroes series as well as some characters from other ADK games were featured in the Neo Geo CD-exclusive title, ADK World. Since World Heroes Perfect and ADK World, and during the Neo Geo Pocket era, ADK suffered enough financial difficulties to file for bankruptcy; however, all intellectual properties and copyrights to their video game and character library were bought by SNK Playmore. Due to the World Heroes series being entirely originally released for the Neo-Geo platform, some characters from the franchise returned in the fighting game NeoGeo Battle Coliseum and the card game SNK vs. Capcom: Card Fighters DS as a result, as well as SNK Heroines: Tag Team Frenzy. Characters This section lists the characters in the original game, and characters added or removed in subsequent releases. World Heroes Dr. Brown This unplayable character, and his involvement with the concept of time travel, serves as an apparent homage to Doc Brown from the Back to the Future film trilogy (he became fully known as "Dr. Brown Sugar" with the release of Neo Geo Heroes: Ultimate Shooting). Dr. Brown has been also responsible for bringing and helping Nakoruru, Love Heart, and Mui Mui in the event of The King of Fighters XIV. Hattori Hanzō Hanzo is the protagonist of the series and uses many moves and commands similar to Ryu from the Street Fighter series, a common occurrence in fighting games of the time. However, in later titles of the series, Hanzo became slightly less comparable to Ryu. Hanzo also appears in NeoGeo Battle Coliseum as a playable character. He is based on the historical ninja of the same name. Fūma Kotarō He is considered the rival of the main character Hanzo Hattori and as such they both share many similar moves (albeit using different names) in a similar fashion to Ken from the Street Fighter series. Fūma also appears