Acrobat Puppy is Spot's puppy amoeba who appears in "Spot Returns."
Acrobat Puppy is a tiny translucent green amoeba, and is also just the right size for Plankton. He also has an antenna and three dark green spots on him, with four legs on each side of his body.
He is one of the puppies used for Plankton's plan in stealing the Krabby Patty secret formula
, by sneaking inside Mr. Krabs' office and opening the window, so Demolitions Puppy
can go in.