Mario vs. Donkey Kong 2: March of the Minis - Cannon Kaos is a single-player online Flash game where players control cannons to launch mini Mario figures at targets, aiming for precision and strategic planning. In this game, the setting is within the Mario universe, focusing on the playful conflict between Mario and Donkey Kong, with the game serving as a promotional tool for the Nintendo DS release. It stands out with its simple yet engaging gameplay mechanics, featuring physics-based projectile launching, and offers a nostalgic experience that ties into the larger Mario franchise, emphasizing timing and accuracy in a browser-based environment.