Magical Houshin

Magical Houshin is a Japanese GBA game very loosely based on Chinese novel Fengshen Yanyi (Houshin Engi in Japanese). The game tells the story of a young boy named Sora who goes up a mountain to study to become a hermit. On his very first day, he and his friends break the seal leading into a cave with a magical item that allows people to make super-weapons known as 'paopei'. When the chief hermit finds out, he asks them to go defeat the demons currently rampaging through the lower world and off they go.