What is the name of the episode where Rick creates a tiny universe to power his car?

The episode where Rick creates a tiny universe to power his car is “The Ricks Must Be Crazy.” It is the sixth episode of Rick and Morty’s second season and the 17th episode overall.

In the story, Morty discovers that Rick’s car battery contains a microverse whose inhabitants generate electricity. Rick gave them technology that lets them produce power, while secretly taking most of the energy for himself. Morty objects to the arrangement, describing it as “slavery with extra steps.”

The episode introduces Zeep Xanflorp, a scientist voiced by Stephen Colbert. Zeep creates a miniverse inside the microverse, and another scientist creates a still smaller “teenyverse,” producing a chain of nested universes. This escalating idea is the episode’s central science-fiction joke and conflict.

“The Ricks Must Be Crazy” first aired on Adult Swim on August 30, 2015. Its title references the 1980 film The Gods Must Be Crazy, while the plot explores the series’ recurring themes of scientific arrogance, exploitation, and Rick’s questionable ethics.