Bongo Boingo

The Ginormous Fish in Something Fishy In Owl Lake. Then It was on the line with Coop and Burt's fishing rode and it jumps out of the water dragging them along before they land on the beach during The Father/Son Fish Derby. Old Lady Munson and Burt knows about it, she tells Millie a tale about her childhood.

In King of the Pipsqueaks, It's made another comeback as it leaps and swallows up the evil pipsqueaks in their boat at the end of the episode while they were sailing across the sea before they were preparing for another invasion somewhere else to take over.

Gallery

It eats Kat's submarine then Kat inside.

Kat inside the fish.