Yaiba has the Raijinken but it's the Thunder God that turns the tables on him. Then there's Onimaru.

Yaiba et al. head to Ganryu Island to learn about an arcane maken but end up at a shady hot spring.

Yaiba and his companions storm Onimaru Castle, but they fall through a trap into the depths of the stronghold and face Onimaru's new henchmen.