Fist of the North Star: Ken's Rage
Hisashi Koinuma, the game's producer said that the staff aim to create a "new realistic feel" for the "Fist of the North Star" series while still being faithful to the original's roots. During this process, he mentioned his concerns for the characters' body structure, muscles, and other minute details (such as perfecting the model for Raoh's wrinkled forehead). He noted that the official mode for this title carries more action adventure tones than other "Warriors" titles thus far yet gave his assurance that "Warriors" fans can easily feel at home in the game's original story mode. He personally spoke his thoughts regarding the game at Yodobashi-Akiba, Biccamera Yurakucho, and Biccamera Ikebukuro on March 22 and March 25. He also played a rock-paper-scissor game for attendants, the winner of the crowd obtaining an original T-shirt signed by the game's voice actors.
Gaiden
Works whose titles contain the word "gaiden" include "Saiyuki Gaiden" (prequel to Son Goku's past), "Fire Emblem Gaiden", "Ten no Haō Hokuto no Ken Raō Gaiden" (spin-off of "Fist of the North Star", which is told through the eyes of Kenshiro's brother, Raoh) or "" (released in English as "Albert Odyssey: Legend of Eldean"). The word "gaiden" has been used in English titles as well, such as "Ninja Gaiden" (literally "Ninja's Tale", the American title for the Japanese series "Ninja Ryūkenden") and "Resident Evil Gaiden" (a European-developed spin-off of the Japanese "Resident Evil" franchise), "Super Robot Taisen Alpha Gaiden", and "". The Nintendo 64 game "" was called "Zelda Gaiden" or during its initial development.