World Heroes (ワールドヒーローズ, Wārudo Hīrōzu?) is a series of fighting games created by ADK originally created for the Neo Geo MVS arcade cabinets with the assistance of SNK, though some of the games in the series were also ported to the Neo Geo AES and Neo-Geo CD platforms, as well as some non-SNK platforms such as the Super NES and the Sega Saturn. A fifth title World Heroes Pocket was announced for release on the Neo Geo Pocket, but was canceled. The general premise is that a scientist, Dr. Brown, having perfected a time machine, organized a tournament for various fighters throughout all of history to combat each other. True to this plot, many of the fighters are based on actual historical figures, while some are fictional ones.