Cartoon Network Studios’ Adventure Time: Fionna and Cake has sadly come to a grand end after a long and harrowing quest throughout the Adventure Time multiverse as Fionna (Madeleine Martin), Cake (Roz Ryan) and Simon (Tom Kenny) have learned many valuable lessons about themselves.
With the show providing these unique looks into the worlds that lie beyond the Ooo we all know and love, many fans have been desperately waiting for the epic conclusion to this series. Now, we’ve finally reached that threshold and the ending has left a bittersweet, yet satisfying feeling for everyone watching.
Throughout this show, Fionna, Cake, and Simon have been travelling throughout the multiverse in hopes to make Fionna-World magical again by turning Simon back into Ice King through the Crown, which has caught the eye of celestial auditor Scarab (Kayleigh McKee) due to their illegal “crossover”-ings.
Although Fionna and Cake were able to stop the Scarab and canonize their world, the show’s ending suggests that there may be some unintended consequences that come with this victory.
Fionna and Cake Ending Explained
MAJOR SPOILERS AHEAD!!!
In one of the most intense battles in the franchise with Fionna and Cake against Scarab, the two manage to take down Scarab after some help from their new allies including Jay (Tiffany Wu) and Little Destiny (Mickey Zacchilli), the Squirrel (Marc Maron), Baby Finn, and Bonnibel’s Peppermint Tank.
With their world finally canonized and saved, Fionna, Cake, and all their friends celebrate at long last. In addition, Jay and Little Destiny ask Fionna if they could stay in their universe instead of returning to Farmworld, which was more of a step-down after all the craziness from episode 5 (plus, they’ve got actual toilets!)
Surprisingly, Fionna and Cake’s new friends actually do stay in Fionna-world rather than going back to their own, giving this world a bit of the magical touch that Fionna and Cake were originally looking for. Even Kheirosiphon from episode 4 stays and works in the tea/coffee shop Gary (Andrew Rannells) and Marshall Lee (Donald Glover) went to.
As for the rest of Fionna and Cake’s friends, everything just seems to go back to normal: the city gets rebuilt slowly but surely, Fionna joins Marshall in protesting the rising rent costs by Marshall’s mom, Gary opens his own baked goods truck, and Fionna and Hunter (Vico Ortiz) might actually be forming a close relationship.
Back in normal Ooo, Simon is finally embracing the world around him, hanging out with Jake’s son T.V. and sharing his stories about Casper and Nova with Astrid, perhaps influencing the book that he read in the previous episode with Beth. He also still keeps in touch with Fionna thanks to their multiversal phone line, which amazingly still works.
Back in his Up-Ton apartment, he has a therapeutic session a Minerva-bot (Sharon Horgan) as he relays all his emotions, hoping that he’ll never forget that his life as Simon has real meaning. As a funny side-note, he’s also planning to move out after being watched and observed by the futuristic humans for so long.
In the end, it does look like everyone is getting a happy ending that they’ve been looking for even if it’s not the fully magical one that Fionna and Cake were originally expecting.
However, while everything seems to be stable and working out, there’s one thing that seems to keep this show open-ended: Prismo (Sean Rohani). He’s put in a good word with Orbo to keep a watchful eye on Scarab, but a one-frame glitch suggests that Prismo’s actions may have led to more incidental roads.
Is Something Wrong With Prismo?
Following the big fight, Scarab is now assigned to work under Prismo for his destructive actions in Fionna-world much to his own jealousy. However, during his watch, Prismo has a slight glitch, turning his face upside-down right before he brings his computer.
Throughout the show, whenever Fionna and Cake were crossing over into alternate universes, they would accidentally glitch out the things they touched such as Cake turning one of the Hot Dog Knights into a normal hotdog in episode 3 and turning BMO into Fionna’s alarm clock in episode 8.
Because all of Fionna and Cake’s multiversal allies decided to stay within Fionna-world, the residual impact of this crossover may be much more stronger and thus much more dangerous. Scarab constantly sought out Fionna and Cake for crossing over with other universes, citing them as “abominations” that were “infecting” these worlds.
However, that was originally due to Fionna-world being an unauthorized universe, which isn’t the case now. Though, it looks like the same rules of crossovers might be applied here, which looks to be the cause of Prismo’s glitching.
If Scarab turns out to be right all along, then Fionna-world is presumably more in danger than any other reality, which creates an opening for a realm of possibilities. Originally, Fionna and Cake was set to only have one season, but with the show leaving breadcrumbs for more, fans can only hope that our duo may return for one last adventure.
All episodes of Adventure Time: Fionna and Cake are now streaming on Max.