No show is more capable of crossing over with other universes than Rick and Morty. Since the series' beginning, the titular characters have hopped into different dimensions and realities, making a large impact in each one. Despite the characters' dimension-hopping abilities, Rick and Morty is currently unable to cross over with Solar Opposites, the other adult animated series also co-created by Justin Roiland. However, it doesn't necessarily mean they don't exist in the same universe.

Despite Roiland's heavy involvement in both series with similar animation styles and humor, Solar Opposites streams on Hulu and is produced by 20th Century Fox Television. In contrast, Rick and Morty airs on Adult Swim under the umbrella of Warner Bros. Entertainment. Since Fox is now owned by Disney, one of Warner Bros.'s biggest competitors, it's unlikely the companies will allow a crossover between their respective shows.

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Are Rick and Morty and Solar Opposites Connected?

Roiland is fully aware that his two shows can't interact with one another, but he still suggests that they take place in the same multiverse. As the co-creator of Rick and Morty, Roiland's no stranger to incorporating Easter eggs and certainly does so on Solar Opposites. In Solar Opposites' pilot "The Matter Transfer Array," Korvo and Terry watch a kid's show called Funbucket Tadstockings, where the titular furry character goes on adventures through space and time with an unnamed little girl. Their time travel lair exists in a basement with a portal machine on the side. As such, the duo goes on Rick and Morty-type adventures in short clips before shockingly killing a man in his car who looks like Justin Roiland wearing a Hulu tee shirt.

Another obvious clue to the two shows taking place in the same universe is a "Schwifty Live Jazz" poster at Yumyulack and Jesse's school in Solar Opposites. This directly references the beloved Rick and Morty Season 2 episode "Get Schwifty," in which Rick and Morty save their world by competing in an intergalactic singing competition.

One more obscure Easter egg that ties the two shows together appears in Solar Opposites Season 1, Episode 3, "The Quantum Ring." It features a poster for a VR game called Trover Saves the Universe, a real-life game created by Roiland. Rick and Morty also shows a poster for the game in the background of the Season 4 premiere "Edge of Tomorty: Rick Die Rickpeat." Since Roiland's game is acknowledged in both series, it's more proof that they exist in the same universe.

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Multiple Shows, Including The Simpsons, Share a Universe With Rick and Morty

Both Solar Opposites and Rick and Morty have a history with The Simpsons. In the Solar Opposites Season 1 finale "Retrace-Your-Step-Alizer," Terry and Korvo talk about the time they defeated the Monstars from the original Space Jam with help from the Simpsons family, showing them in flashback form. Rick and Morty crashed into The Simpsons' couch gag and killed the family. While that event isn't considered canon for The Simpsons, the fact that they're capable of crossing over with both Rick and Morty and Solar Opposites means they share the same universe too, along with Family Guy and Futurama.

Although it's unlikely Disney and Warner Bros. would cross over Rick and Morty with Solar Opposites, it's worth noting that both companies agreed to have Bugs Bunny and Mickey Mouse share the screen together in Who Framed Roger Rabbit. If they could have their most important characters briefly interact in a movie, a deal could be made in the future to cross over Roiland's two animated comedies.