The enemies in the game include ninjas that shoot ninja stars. Ninjas will shoot stars every 1.5 seconds they are on screen, with the stars moving at 300 pixels per second. As levels progress, ninjas will get stronger, shooting stars faster and possibly having two ninjas per platform. Ninjas may also have special attacks, such as shooting three stars at once or dodging bullets. Bosses will appear every 2000 points as checkpoints. Bosses will rapidly fire ninja stars and jump around, requiring the player to dodge them. Bosses can also deflect bullets back at the player occasionally.