Nekketsu Kouha Kunio-kun: Bangai Rantou Hen, a series debut on the Game Boy by Technōs Japan, is a subsequent installment to Nekketsu Kouha Kunio-kun. It notably adopts the visual aesthetics of Downtown Nekketsu Monogatari, previously launched on the Famicom. This second Kunio-kun series offering presents Kunio and Riki uniting against a collective menace, a theme recurrent in subsequent games.
Nekketsu Kouha Kunio-kun: Bangai Rantou-hen is the first game in the Kunio-kun series released by Technōs Japan for the Game Boy. It is a sequel to Nekketsu Kouha Kunio-kun, but uses the graphical style of Downtown Nekketsu Monogatari, which was previously released on the Famicom. This is the second game in the Kunio-kun series that has Kunio and Riki joining forces against a common threat, which would become a standard in later games.