u/SuperSlayin777

After the finale of Season 1 of Fionna and Cake, we see a cube and a GOLB-red pyramid come together to form an apple with a bow around it.

GOLB’s blocks used to be sentient beings, so this block can represent a person. Because the block and the pyramid come together, I believe together they represent GOLBetty. This after-credits scene may very well represent the overall theme of Season 1: Moving on from the past and growing as an individual.

The talking squirrel was content selling cursed apples in his new life apart from his toxic “roommates.” In the Tree, he “wasn’t allowed to do anything,” but he had “grown beyond the Tree,” living his own life and pursuing his own goals. Gary needed to move on from his perfectionist obsession over his “candy kingdom,” and Marshall needed to move on from his toxic mother. Simon also had trouble letting go of the past, believing his life had no meaning without Betty.

Betty sacrificed everything in her relationship with Simon. In order to save Simon, Betty made a wish that turned her into the embodiment of chaos. The apple in the post-credits scene has a bow tied onto it, just like GOLBetty’s head does. Based on the scene with the squirrel, it seems like this apple represents contentment, independence, and personal growth. Fionna World became its own separate world, no longer dependent on Simon; Simon went to therapy and was no longer dependent on Betty; GOLBetty has moved on from her old life, and is living in eternal contentment. Even Fionna learned to accept her world the way it was, no longer believing it needed to be “magical.”

In Fionna and Cake Season 1, Simon used the power of two primordial monsters to power some kind of spell.

The first time, Simon used Choose Goose as a “spell battery.” After the credits of DL: Wizard City, it was revealed that Choose Goose survived drinking the ichor of Conconteppi, and became corrupted. The power of this ancient primordial being remained inside Choose Goose, enabling Simon to use him in an attempt to see Betty again (though he ended up bringing Fionna and Cake to Ooo).

The second time, Simon used the Lich as a spell battery. The Lich is the King of Ruin, the Last Scholar of GOLB, whose spirit was embodied by the green comet. This spirit (re)gained its physical form at a subway that got nuked during the Great Mushroom War. After having that physical form killed by Finn, the Lich moved on to possess a snail until it would revive itself, kill Billy, enter the Time Room, and wish for the extinction of all life. After that, Simon eventually found him, and used his power to allow Fionna and Cake to reenter their world (and inadvertently open the portal to GOLBetty’s void realm).

The powers of two primordial evils took on different forms, but were both used by Simon in the same season of Fionna and Cake.

PB’s sweater was imbued with the power of love liking someone a lot. It was this power that protected Finn from being burned by the Lich, an evil being hellbent on destroying life. This same being eventually became Sweet P. The “sweet things” that Tree Trunks would do for Sweet P every night would serve to keep his “Lich-ness” at bay, paving the way for Sweet P to eventually become a mountain-sized, sword bearing hero. Billy tried fighting the Lich, but the Lich was really only ever defeated by love.

Finn is a reincarnation of the Blue Comet; an important part of his development into an advocate of peace…what the Blue Comet embodied…was when he built his tower into space. Finn’s cosmic consciousness served as his “melon heart,” and manifested a magic arm, knowing Finn would build his tower, encounter Carol, be rescued by PB, and learn that revenge isn’t the answer.

Even Tiffany would learn to get over his jealousy, and accept the friendship between Finn and Jake.

Moe was “a sad and gentle man, beloved only by those he built to belove him.” BMO was different from his other creations. The Mo’s were made to love Moe, AMO was made to receive love…but BMO was made to find someone else to love. In a time of great war that would devastate the world, Moe made BMO to bring love, to play, and to “Be More.” He sent him out to Mars to terraform the planet, and even had blueprints for a Martian colony (we see them in “The More You Moe, the Moe You Know”); Moe must have known there was already intelligent life on Mars, and sent BMO there to befriend and help the Martians while his own world came crumbling down.

Because BMO was made to love, not to fight, he was not like the others who tried fighting the embodiment of chaos when he arrived. “GOLB is discord.” He makes things fight each other in order to bring confusion and disorder; he is weakened by harmony (e.g., music…sounds in harmony). BMO tried to comfort Jake by singing to him, leading to the discovery of GOLB’s weakness, and Finn and Simon’s rescue from total erasure.

GOLB could not be banished or destroyed with a wish, but the wish that worked was found because of love: Betty wished she had the power to keep Simon safe. The Crown granted her wish by turning her into GOLB. Betty loved Simon so much, she was willing to leave him in order to save him.

If GOLB swallowed Marceline, she would be reset to her “essential form:” rewound back to the age she was before she absorbed her first vampire soul.

However, would the souls of the VK, the Empress, the Fool, the Hierophant, and the Moon become whole entities again, themselves reset to their “essential forms,” or would they simply just vanish?

Prismo and the Time Room exist outside of time. In the multiverse, time waves create the linear passage of time. In the Time Room, events are not linear, but cyclical; this is demonstrated in the episode “Is That You?” That’s how Prismo was able to come back; he was still in the “past,” in a manner of speaking, so he was able to bring himself back.

But if he could bring himself back, what if he created himself too? My theory is that Prismo’s death at the hands of the Lich, followed by his resurrection, is how he came to being in the first place. Finn and Jake created Prismo by helping him come back from death. Prismo’s “bro bond” with Jake enabled Jake to fall asleep and become Prismo, and that “bro bond” happened because Jake fell asleep and became Prismo. If Prismo never died, he never would have lived. It’s an eternal event that created itself. Prismo’s resurrection is his origin.

This theory seems to hold water when we consider that when Betty suggested she could go back in time and prevent the Great Mushroom War, it alarmed Prismo and the Cosmic Owl. No Mushroom War means no Jake, and no Jake means no Prismo, and no Prismo, for the most part at least, means no multiverse.

The Lich studied GOLB’s ways “for ages untold,” and through the witnessing of his might, he came to the conclusion that GOLB’s goal is to destroy all life.

However, upon discovering GOLB’s weakness, Princess Bubblegum came to this conclusion: “GOLB is discord.” He doesn’t just destroy things, he makes things *try* to destroy *each other.* GOLB has no goal, he is simply chaos: he brings confusion and disorder by making things fight each other.

The Nazis are a prime example of the unifying power of hatred. With one single breath, GOLB assimilated an army of candy soldiers into a corrupted candy monster that attacked whatever it saw, and absorbed other cake soldiers. It even infected one of the gumball guardians, turning it into another candy monster that started to fight. This was all from the breath of GOLB’s mouth…nothing sows discord better than the mouth.

When GOLB eats someone, his very own body “fights” toward the complete annihilation of the one inside of it. First, any time spent changed from their “essential forms” is reversed, and then the box-shaped region of empty space inside GOLB’s body shrinks, much like the hole in Billy’s being, until his chaotic flesh overwrites the very existence of the one inside of it. The sounds of harmony can dig a hole right through this hateful flesh, allowing space for escape. Hatred, if not dealt with, can bring total erasure.

Despite not exactly having the correct understanding of GOLB, the Lich’s indiscriminate fight against all life has clearly enabled him to outlast all the other scholars of GOLB.

Thematically, the revelation that “GOLB is discord” further connects him with the planet Mars, as in real life, the planet Mars is named after the Roman god of war.

In a year or two, she went from ordinary nerd to literal embodiment of chaos.