Downtown Special: Kunio-kun no Jidaigeki da yo - Zenin Shūgō!

Downtown Special: Kunio-kun no Jidaigeki da yo - Zenin Shūgō! is a Japan-exclusive title that functions as both a prequel and a sequel within its series. The setting shifts to Japan's Edo period, where the player controls Kunimasa, an ancestor of the series' usual protagonist.

Progression involves moving through side-scrolling areas populated with hostile characters. Combat utilizes a variety of physical attacks and purchasable special techniques. A key structural difference from its predecessor is the non-linear stage selection, allowing players to choose their path. Character advancement is handled through two systems: earning experience from defeated foes to improve base attributes, and collecting money to buy stat-boosting items, weapons, and new fighting moves from in-level shops.

The visual presentation retains the series' signature super-deformed style and core game engine, with graphical assets updated for the historical theme. Support is available throughout the adventure in the form of companion characters. These allies, which can include former opponents, are controllable by a second player or by the computer when playing alone.