You are equipped with a Spinning Sword to clear any minions that stand in your way.
You can also find a Golden Bell, whose chime slays from a distance, a Silver Bell, which creates an impenetrable shield of sound around you, a Mini-Niki, which grants you an extra life, and a Mini-Princess, which averts one death. There are seven realms you must traverse, each having a boss at the end.
The seven bosses are Death Breath, Spike, the Stone Buddha, the Horned Witch, the Green Grub, the Mad Monk, the Samurai Guard, and the Stone Wizard. After you rescue the princess you must chase and defeat the Stone Wizard in the final eigth round.