Good catch  I just checked the credits and youre right that hes credited on character design However he doesnt seem to be the one who designed Samus according to the page you linked Also in the credits its listed like this with this spacing   CHARACTER DESIGNED BY  KIYOTAKE    NEW MATSUOKA  SHIKAMOTO  which suggests he didnt have a primarylead role  enemy design perhaps Hes still contradicted by the directorcocreatorfellow character designer though But this is an important point so thank you for making the correction