The Game Boy version of Street Fighter II was released on August 11, 1995 in Japan and on September 1995 internationally. It is missing three of the original characters (E. Honda, Dhalsim and Vega), although the remaining nine are all playable. The graphics, character portraits, and backgrounds are based on Super Street Fighter II, although some moves (such as Blanka's Amazon River Run) from Super Street Fighter II Turbo are included as well. Since the Game Boy only features two buttons, the strength of a player's punches and kicks are determined by how long the player hold either button (an input method similar to the one used in Fighting Street, the TurboGrafx CD version of the original Street Fighter). Same character matches are allowed, but because of the game's lack of color, distinguishing between two characters is not possible even on a Super Game Boy.