mystical ninja starring goemon

a giant ufo has appeared over oedo castle, and the mystical ninja is off to save the world again! control goemon and his giant robot, impact, ebisimaru, a truly twisted ninja, yae, the part-time militant mermaid, and sasuke, a mechanical warrior. this brave band must travel from town to town, collecting information and purchasing helpful items in their quest to defeat the dreaded peach mountain shoguns.