"Juvei Quest: The Adventure of Jubei" is a 1989 FC role-playing game by Namco, blending Japanese-style worldbuilding with sci-fi and fantasy elements. Players control protagonist Jubei, leading a four-person party on a quest to defeat the demon realm's leader. It incorporates character swapping and support systems from Namco's "Kaijuu Monogatari" to boost strategic, fun combat.