They first appear in "Mystery Meat." While Jack is rambling on about ghosts and ghost hunting, the Fenton Portal opens and releases two of them, and they grab Sam and Tucker. While Jack continues his ramble, Danny goes ghost and battles them off-screen, sending them back into the Ghost Zone.
Their next appearance is in "Bitter Reunions," where they ambush Danny in Vlad's mansion. Danny quickly defeats them, but runs into trouble when Skulker appears. In this episode, Vlad reveals that the ectopuses that Danny fought in "Mystery Meat" were sent by Vlad to test Jack's strength.
A few ectopuses are seen here and there in "Reign Storm." A single ectopus was one of the ghosts who stuck their head out of the Fenton Portal before bursting out of it with the countless other ghosts. Another one later rudely stole Danny's lunch at Casper High.
"The Fairly Odd Phantom"
Powers and Abilities
They possess standard ghost powers, such as intangibility and flight, as well as the ability to elongate their tentacles, and possibly super strength, as they were able to easily lift Sam, Tucker, and Danny separately. However, they are shown to be a weaker type of ghost, and are not much of a threat.
- 312. "Phantom Planet"
- An ectopus in the short "The Fairly Odd Phantom" displays the ability to duplicate. Whether or not they have this ability in canon is unknown.