Wonder Momo is a Japanese action game series created by Namco, centered on a schoolgirl who transforms into the superheroine Wonder Momo to fight invading enemies and stage-based bosses. It first appeared as an arcade game and later expanded into sequels, ports, and related media, including anime and manga adaptations. The franchise is best known for its lighthearted, transformation-based superhero premise and its arcade-era character design, which made it a recognizable cult classic.