The game blends traditional beat-'em-up action with deep RPG systems: Open World:

Gameplay systems:

: Follow Kunio through a three-day in-game journey filled with rival gang hostilities, secrets, and multiple branching endings.

The inclusion of a leveling system—where Kunio learns new moves by reading manuals and leveling up stats through repeated combat—creates a compelling gameplay loop. The "Rival" in the title is not just for show; the boss encounters require pattern recognition and tactical maneuvering, moving away from the stun-locking exploits that often plagued earlier entries in the genre.

River City Rival Showdown is available for download on the Nintendo eShop in NSP and XCI formats. Here’s how to get started: