Invisighoul

Porutāobake are invisible ghost enemies that appear in exclusively during Hector the Reflector's boss battle at the end of Hector the Reflector's Haunted House in Yoshi's Island DS. Porutāobake resemble Hector the Reflector, although are smaller in size, being round white ghosts with small tails and black eyes, somewhat similar to Boos. Porutāobake are only visible in the mirror on the lower screen during the boss battle, and carry chairs, tables or flowerpots towards Yoshi which will cause damage upon contact, but can also be swallowed along with the Porutāobake to create Yoshi Eggs.