The Mighty Isabella! (虹の逆襲！The Return of The Rainbow!) is the sixth episode of Hollywood World.
Isabella turns into "The Rainbow" and starts fighting crime. But Courtney turns "The Rainbow" into the super villian. Can Phineas save her?
Poliwhirl (Owen's; debut)
- Although the episode title is similar to "The Mighty B!", none of the characters from that show have appeared in this episode.