Inafune (credited as "Inafuking") designed and illustrated nearly all of the game's characters and enemies, as well as the Japanese Rockman logo, box art, and instruction manual.
Inafune, omnämnd i spelet som "Inafuking", designade och illustrerade nästan samtliga av spelets figurer och fiender liksom den japanska "Rockman"-logotypen, omslaget och instruktionsmanualen.