"Pinky and the Brain" are back to once again prove their mousy worth in a new clip.

Film critic Doug Walker and his show "Nostalgia Critic" bring back the animated lab mice for one scene, a situation that is long in the making, with Brain finally getting to unload his frustration on Pinky without any self-censoring. (It's not really safe for work.)

"Pinky and the Brain" were supporting characters on the 1993 series "Animaniacs," before getting their own series in 1995. Narf!

The two characters are a pair of lab mice. Brain is a genius who sounds like Orson Welles and Pinky is a moron whose mind frequently wanders. Together, they attempt scheme after scheme for world domination.

This basic plot point is conveyed in the opening of every episode with the classic exchange:

Pinky: "Gee, Brain, what do you want to do tonight?"
The Brain: "The same thing we do every night, Pinky -- try to take over the world!"

Voice actors Rob Paulsen and Maurice LaMarche return to play the animated mice, with the cartoon art provides by fans. You can watch the episode of "Nostalgia Critic" below. The "Pinky and the Brain" bit starts at around the 29:00 mark. Fyord!