Spongebob-Plankton Relationship

Overview
Plankton and SpongeBob are rivals. Plankton usually tries to steal the formula and SpongeBob defeats him. However, They have got along before.

On Plankton's Side
Just like the other characters who gets in his way, Plankton despise SpongeBob with a passion. Plankton even goes far to attempting to kill the Sponge.

However Plankton can get along with SpongeBob. Plankton has attended his parties. Plankton sometimes also works with SpongeBob's friends to cheer him up.

On SpongeBob's Side
SpongeBob returns the same hatred Plankton has. SpongeBob has scold, yell, beats up or even kills Plankton. He also regularly defeats him.

Despite the Rivalry, SpongeBob has shown friendly actions towards Plankton. SpongeBob has tried to be friends with him and has help him to cheer up.

Trivia
SpongeBob and Kirby has eaten Plankton.