DynaMarisa is a 3D doujin third-person shooter. It is a fangame for the T?h? series that parodies the Earth Defense Force games. The main heroine is Marisa Kirisame, a human magician and thief. A rival sorceress named Patchouli is angry as Marisa constantly steals her book, and has made giant robots to prevent the next robbery. Despite being a magician, Marisa can't actually use magic in the game and only uses weapons. The player chooses two for each mission. Marisa must destroy all robots and other enemies such as fairies. She also has a little help from several fairies.