Koichi Yagi

Koichi Yagi (K. Yagi, Yusa [やぎ・ゆさ・こういち]), creditado como Roteirista, Diretor, Diretor de Programação e Programador.

Aparece nos jogos: Poochy & Yoshi's Woolly World, Yoshi's Woolly World, Kirby's Epic Yarn, Wario Land: Shake It!, Yu-Gi-Oh!: The Dawn of Destiny, Rave Master, Dance Dance Revolution: Disney Dancing Museum, Castlevania: Legacy of Darkness, Goemon's Great Adventure e Mystical Ninja Starring Goemon.