Hadouken or hadoken (波動拳, hadōken?, IPA: [hadoːkẽꜜɴ], a Japanese neologism, literally "wave motion fist" or "surge fist"), is a special attack used by the characters Ryu, Ken, Sakura, Dan (whose version of the technique is named the Gadouken), and Akuma (Gou Hadouken), Sean (Hadou Burst), Allen (Soul Force), Kairi (Shinki Hatsudou) and Gouken (also called the Gou Hadouken). Takashi Nishiyama, the creator of Street Fighter, credits the 1970's era anime Space Battleship Yamato and a missile called the Hadouho as the origin of hadouken. The hadouken and the shoryuken are the two archetypal moves of these characters. The move is achieved by the character thrusting their palms forward, sending a surge of spirit energy (or ki) flying towards the opponent (see chi blast). It is normally performed by the player moving the joystick or D-pad a quarter circle forward towards the opponent from the down position, then pressing a punch button (so, for example, a character facing to the right would execute the move by pressing ↓, ↘, →, and then "punch" in a smooth motion).