Wonder Momo - S01

One day, a group of aliens plotting to take over Earth invades Tokyo. Momoko, who dreams of becoming an idol, ends up caught in the fight, though not in the way anyone would expect. Warudemon, king of the alien empire, tries all sorts of schemes to hunt down Momoko and the people close to her. Momoko decides to stand up against this invasion. Wonder Momo was originally an arcade game released in 1987. It is a fairly simplistic side-scrolling beat 'em up by today's standards, with a transforming heroine who fights with a hoop.