Kutaro is the hapless and silent main character and protagonist of Puppeteer. He is a young boy who has been kidnapped, taken to the moon, and turned into a puppet. Kutaro loses his head early in the game after being attacked by the Moon Bear King, and must wear others he finds along the way to survive.

To find his way home, Kutaro must journey across the Moon Kingdom, facing off against The Twelve Generals of the Zodiac and, eventually, the Moon Bear King himself.