Alternate universes

Along with our universe, there is a number of parallel universes that have been shown. The universe that we live in is called "Universe A" or "Universe Gamma."

Known Universes

 * Cowboy Universe-The first parallel universe shown, that was created simultaneously by the Medium-Sized Bang. In this universe, everybody dresses as cowboys.
 * Universe 1-The main difference in this Universe is that coin flips end up differently, and boxes are blue.
 * Icy Universe.
 * Women Universe.
 * Octopus Universe.
 * Universe 25-In this one, nobody have eyes, and boxes are white.
 * Universe 1729-Everybody are bobble-heads, and boxes are pink.
 * Universe 31-The humans are robots, and robots are possibly humans. Boxes are green.
 * Universe XVII-A universe where everything looks like the Roman Empire. Boxes are purple.
 * Leprechaun Universe.
 * Pirate Universe.
 * Universe 420-Everybody are hippies and smoke marijuana. They have a shortage of boxes, which are orange.
 * Electromatter Universe-The universe where Yivo lives by shklerself and Colleen. Everything is made of electromatter, which can only be harmed by electromatter.

Appearances
5ACV07, 5ACV08)]]
 * "I Dated a Robot"(3ACV15)
 * "The Farnsworth Parabox"(4ACV15)
 * [["The Beast with a Billion Backs"(5ACV05, 5ACV06,