Kingdom Hearts: Birth By Sleep

Birth by Sleep, originally released for the PSP, is a great prequel that excels when it comes to expanding the Kingdom Hearts’ universe and lore, even though it never quite succeeds at justifying its burdensome narrative structure: there’s this great expression in Portuguese, which can be translated literally to “forcing a friendship,” that is basically how anyone feels about the game after it asks them to play it for the third time just to get the full picture.

The story follows the separated journeys of three friends, starting on the eve of an important exam. It’s nighttime, and the young Ventus is training with his childhood friends Terra and Aqua, who will need to prove that they can become Keyblade Masters the following day. Before each one goes to bed, Aqua gives them pendants that symbolize the unbreakable bond between them, celebrating their love. Kingdom Hearts has always been about the bonds of friendship and how time can work against them: childhood friends can easily fade away into distant memories as people grow up and each one goes on to tread their own path – sometimes meeting each other again only at opposite ends of political battlegrounds.

After a brief introduction, we get the choice of following their separate stories, with the promise that witnessing them all is crucial if we want to understand everything. Terra’s arc, however, is by far the superior of the three and the most important one from a thematic standpoint.

Terra is a conflicted boy. His master, Eraqus, claims that there is darkness inside of him and calls on the boy’s obsession with power, with winning and proving that he’s the best among his friends. Eraqus, however, doesn’t offer solutions, only reprimands. You see, Terra may be loyal to Ventus e Aqua, but he’s also the kind of person who agrees with a villain when she calls the creatures he just killed “base” and insignificant. For inside Terra, hatred and rage breed, born from the fear of being weak and impotent: people who think low of themselves yearn to find someone who is even lower, and so embrace any political position that creates these inferior enemies.

Eraqus’s remarks, then, only aggravate the situation: since it is Terra’s insecurity that allows darkness to grow inside of him, being constantly called down by his master only fuels the boy’s hatred. Lost amidst his conflicted feelings, Terra becomes easy prey for the series’ main villain, Xehanort, who immediately channels his inner Palpatine to tell the boy he must “embrace the dark side.” Xehanort tells the boy that he cannot escape what he is, defending that “Darkness cannot be destroyed. It can only be channeled.”

The ideology of Terra’s master doesn’t help his pupil at all, because Eraqus’ binary worldview, also shared by Aqua, only serves to condemn the boy: for them, there is only light and darkness; there is only good people and bad people. Therefore, when he sees the darkness in Terra – and also in Ventus – he gets scared, much like Luke Skywalker in The Last Jedi. And, much like Luke in The Last Jedi – and it’s fitting that Mark Hammil plays both characters – Eraqus makes a grave mistake that ends up pushing Terra and Ventus further apart from him, turning them into easy targets for Xehanort.

Terra and Ventus have the most interesting stories in the game precisely because of their inner conflicts and attraction to the dark side, feeling anger, frustration, and doubt. When he travels to the Disney worlds in search of answers regarding himself, Terra often meets and is even enlisted by the villains of those worlds. When visiting Snow White’s kingdom, for instance, he assumes the role of the huntsman, hired by the Evil Queen to kill Snow White. The boy, then, struggles with his own nature, always being tempted to act cruelly. It’s his loyalty to his friends, the power of that bond, and his unwavering desire to remain good that keep holding him back from the darkness – although Xehanort, being no fool, plans to use those very same things against the boy.

Ventus goes through a similar journey, but only by the end of his story. For the most part, he’s just going from place to place looking for Terra and fighting monsters: there’s no strong conflict inside him for most of his journey, and it’s up to a late twist/revelation to put his narrative back on track and thematically close to Terra’s.

Finally, we have Aqua, who has the least interesting story of them all. She’s a great supporting character in Birth by Sleep, serving as the perfect counterpoint to Terra and Ventus’ struggle with darkness by boasting an unshakeable altruism: her quest is to save both of her friends, being a bastion of light and a role model to them. However, the game doesn’t give her much to do when it’s time for her to shine. She will often visit a random world in search of her friends, find out that she has arrived too late to help, remain for a while to assist those that live there anyway, and finally depart to the next world, where everything will happen the same way. There is no inner conflict with Aqua, and the story doesn’t even question her righteousness – as it should have – leaving the girl with nothing much to do.

As the three characters visit the same worlds – albeit in a slightly different order and focusing on different characters and locales inside those worlds – by the third time we go through everything again, boredom may already have settled in – especially if the third time is with Aqua. The problem is a simple one: her story and most of Ventus’s don’t add much to the overall discussions in the grand scheme of things. Terra is the heart of the narrative, and Ventus’ ending makes up for the rest of the boy’s story, but Aqua doesn’t have even that; she’s just there, being a good person and saving the day. Good for her. But, you know, kind of boring.

Xehanort, on the other hand, is a fascinating antagonist in Birth by Sleep. His goal may eventually be twisted by his greed, but, at first, he’s not completely villainous: whereas Eraqus thinks light must reign absolute, Xehanort appears to seek only balance. He’s even capable of acts of kindness, as some of his reports – which serve as collectibles in the game – reveal: “The boy deserved a place to spend his final moments peacefully,” one of them says.

The game also succeeds in exploring the series’ lore, introducing and expanding on events – like the Keyblade War – that help make the series’ central battle between light and darkness – other words for compassion and hatred, an endless cycle of tragic decisions and stories.

On the gameplay department, Birth by Sleep is an Action-RPG that brings an interesting addition to the series core gameplay: now, abilities and spells can be fused together to create a new, more powerful one. This leads to an addictive sense of progression – similar to the Shin Megami Tensei games where you can fuse demons – as each battle earns experience points not only to the main character but also to their abilities, unlocking new things at a faster pace. Birth by Sleep also leans more heavily on its RPG elements than its predecessors, in the sense that having the right and more powerful abilities easily trumps being able to dodge and block at the right time.

Being a Kingdom Hearts game also means that Birth by Sleep – besides having an inscrutable title – also has its share of bizarre and unnecessary minigames. Here, there’s a monopoly game – of all things –, where we can level up our abilities, there’s a racing minigame, a minigame that is a mix of volleyball and soccer, and, of course, a rhythm minigame that makes that Ariel’s bit in Kingdom Hearts 2 feel like it was wonderfully designed in comparison.

In the end, Birth by Sleep is a competent prequel that further complicates the series’ lore, but in a way that has thematic resonance. If only it had decided to focus on just one story, instead of three, and offered a more concise experience.

February 02, 2026.