Karen 2 was a computer that Sheldon J. Plankton built to replace Karen Classic in the episode "Karen 2.0."
She serves as the main antagonist of the episode, and it marks her only appearance in the series due to her destruction at the end of the episode by blowing up.
Karen 2 is a more evil and also has a different design from the original Karen. Unlike the Karen Classic, she did not have arms (even though she used a utility arm to access the Chum Bucket power grid).
Role in episode
She is destroyed by the original Karen at the end of the episode when Karen punches her because she ran over Plankton by accident, as she wasn't paying attention where she was going, and because Karen smacked Karen 2 in the screen.
She is "rebuilt" by taking the glass and electronics out of her screen and by Mr. Krabs putting it on Squidward's face to help bring in more customers.