Mecha Ritz: Steel Rondo is a vertical scrolling arcade shoot 'em up following the journey of a lone Mecha through the desolate retro stylized world and the onslaught of enemy waves to reach Veloce, the young genius responsible for the extinction of humankind.

Set in a mechanized world, the story begins with a world-renowned young scientist named Veloce. One day she invented "Mecha" and eradicated humankind with her creation, recreating a metallic world filled with Mechas. Pilot humanity's last hope, a Mecha imbued with human will, through the onslaught of enemy waves. Yet as the tides of battles turn and the world reveals itself, perhaps there's more than what meets the eye.