Warning! Any information about this article is unofficial and not canon to the Giana Sisters canon. Please read it carefully.
Mario & Giana Adventure is an obscure Giana Sisters Android fangame created by an unknown developer in June 6th 2013, and published by Rock Game based off The Great Giana Sisters. It is a supposed crossover of the Giana Sisters and Super Mario Bros. The gameplay is unknown, though we currently have no gameplay footage and only screenshots.