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Trivia / Kingdom Hearts: Birth by Sleep

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  • Acting for Two: All over the place:
  • Blooper: Before fighting the Unversed alongside Mickey in Radiant Garden, if you look carefully behind Aqua, you can see a second Kairi right behind her. This was rectified in HD 2.5 ReMIX version.
  • Dummied Out:
    • Hackers have found remnants of an unfinished world based on The Jungle Book (1967), the one completed room being King Louie's temple, along with a few partially unfinished jungle rooms including the edge of the man-village. They also found the Light Seeker, a Keychain for Ventus that resembles Mickey's Kingdom Key D. It can still be accessed using cheat codes, but only in the Japanese version.
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    • Pleakley was originally going to appear in Deep Space. An untextured model for him remains in the game's code.
    • Certain cutscenes which appeared in early trailers - shown at events such as the Tokyo Game Show and Jump Festa - were later altered for the game's final release. For example, the scene in which Master Xehanort reveals his plan to forge the χ-blade to Ventus was originally meant to appear in Olympus Coliseum, rather than the Keyblade Graveyard. A scant few scenes were also omitted, including one where Terra watches a young Sora and Riku partake in a swordfight, as well as individual lines, such as Terra telling Aqua that searching for the light Master Xehanort is after will lead them to him or Ventus at Destiny Island telling Aqua to erase him.
    • The Final Mix version contains character models from the then-unreleased Kingdom Hearts 3D: Dream Drop Distance and a graphic from the title card.
    • A texture for a large Treasure Chest for the Land of Departure appears in the game files, but does not appear in-game.
  • Executive Meddling: Two changes were made to a couple story endings because the producers thought the original plans ended on notes that were too depressing. The Final Episode was originally part of Aqua's story but split off into its own scenario, while the scene where Ven is absorbed into Sora's heart was given a framing scene with Sora and Riku on the beach.
  • Fan Nickname:
    • Terra-Xehanort is often referred to as Terranort.
    • Ventus-Vanitas is sometimes called Venitas.
    • Before names were released, Master Xehanort was referred to as OBM (Old Bald Man; in the vein of BHK/Blond-Haired Kid for Roxas). When his name was released, we got affectionate nicknames such as Baldinort, Baldsem, Geezernort, Oldynort, and Grampinort.
    • In a similar vein to the above, before Vanitas' name was revealed, he was referred to as DSU (Dark-Suit Unknown, or Dark-Suited Unknown).
    • There's the Captain Obvious-styled Evil Sora for Vanitas. The epilogue also gave birth to KH Jesus for Sora, as well as Jesusora.
    • A less common one for Vanitas: Soranitas.
    • "Red Eye" and "Hunter of the Dark" for the Heartless that serves as the boss of the Secret Episode, later given the canon name Dark Hide.
    • Prior to the release of Kingdom Hearts Birth by Sleep & 358/2 Days Original Soundtrack, the song "Black Powder" note  was often referred to by fans as "A Battle of Great Valor".
    • Thanks to the Kingdom Smarts podcast Ventus has gained the nickname Baby. This stems from Jake first seeing the wayfinder trio in KH 2’s secret ending. Due to Shannon’s policy of not revealing character names to him until they are given in the games Jake dubbed the trio Big Boy (Terra), Lady Armor (Aqua) and Baby (Ventus, due to him being smaller than his companions and the trio giving off a father-mother-child vibe). Since Ven’s name isn’t spoken in the game until after the prologue on Destiny Islands he’s referred to as Baby during most of that podcast episode and the nickname then stuck both on the podcast and with fans.
  • Fan Translation: With the original Japanese PSP release of the Final Mix version of this game. Like Kingdom Hearts II Final Game, this game has an English patch courtesy of Key to Truth.
  • I Knew It!:
    • Terra turns into Xehanort!
    • Ven becomes a part of Sora.
    • Sora's gonna save Terra, Aqua, and Ven from their fates.
    • Some fans speculated about a possible connection between the armor Xemnas wears in Kingdom Hearts II and the armor the protagonists of this game wear. Final Mix adds the No Heart boss, confirming that Xemnas's armor was Master Xehanort's Keyblade Armor.
  • Name's the Same: One of the Bonus Bosses in the Final Mix version, No Heart, shares his name with an antagonist from Care Bears.
  • The Original Darrin: After being replaced by Alyson Stoner for Re:Chain of Memories and 358/2 Days, Hayden Panettiere reprises her role as Kairi in the secret ending.
  • The Other Darrin:
    • Bret Iwan replaces the late Wayne Allwine as Mickey.
    • In the Japanese version, Captain Hook is voiced by Naoya Uchida instead of Chikao Ohtsuka, presumably because the latter voice actor was also voicing Master Xehanort.
    • Though Hayden Panettiere reprises her role as Kairi, she also replaces Alyson Stoner (who served as her Other Darrin for Kairi) as Xion, making her the Other Darrin to her own Other Darrin.
  • The Other Marty:
    • The HD 1.5 + 2.5 ReMIX release replaces David Gallagher as the younger Xehanort with Ben Diskin to avoid continuity issues with his appearances in Dream Drop Distance onwards.
  • Playing Against Type:
  • Real-Life Relative: Chikao Ohtsuka was chosen as the voice of Master Xehanort specifically for his relationship to Akio Ōtsuka, the previous voice of Xehanort and Ansem, Seeker of Darkness, who is actually Master Xehanort in Terra's body.
  • Role Reprise:
    • Josh Keaton returns as the voice of a teenage Hercules after first voicing him in 1997.
    • Despite his falling out with Disney over the development of Bolt, Chris Sanders returns as the voice of Stitch from Lilo & Stitch. In fact, every Lilo and Stitch character in the game is played by their original actor, a first for the series.
  • Serendipity Writes the Plot: The secret endings of Kingdom Hearts II that tease this game show the three protagonists wearing armor with capes. The capes were intended to be in the final product from the start, but had to be removed because their animations caused FPS issues during multiplayer.
  • Swan Song:
    • This is one of the last two games in which Alan Young voiced Scrooge McDuck before his death in 2016, the other being the 2013 remake of DuckTales.
    • This is also the final time David Ogden Stiers would ever voice Jumba Jookiba before his death in 2018.
  • Talking to Himself: Russi Taylor plays Minnie Mouse, Huey, Dewey, and Louie, who all interact in Ventus's story.
  • Throw It In: According to Tetsuya Nomura, the reason Vanitas looks like Sora was because his Japanese voice actor had always wanted to play the role of a villain.
  • What Could Have Been:
    • Nomura considered showing Leon and Cloud's past in the game. He decided against it because Radiant Garden was already showing the past of seven Organization XIII members, so including the Final Fantasy characters on top of them would have overloaded the world with too many characters.
    • A world based off of The Jungle Book world was going to be featured, but was pulled out. It was likely cut due to legal issues with the late Louie Prima's estate, as the character King Louie is a caricature of him.
    • Laguna from Final Fantasy VIII was meant to appear as the head of the Mirage Arena, but was kept out due to his appearance in Dissidia 012.
    • Pleakley would've made an appearance in Deep Space.
    • The Blob Mob was originally a boss, but it was reworked into a normal enemy due to issues with how many bosses were in the game.
    • The "Birth by Sleep: Volume Two" secret ending of Final Mix hints at a sequel for the PS Vita, though it was axed because the producers thought that there were too many portable games in the franchise. Ideas from the proposed sequel were later reused in Kingdom Hearts 0.2: Birth by Sleep - A Fragmentary Passage.
    • The first trailer shown at Jump Festa 2008 had a lot of scenes that weren't in the final game, or took place differently. Those scenes include Terra thanking Ventus for saving him from an unspecified incident at the Maw of Radiant Garden, Ventus talking to Xehanort at the Olympus Coliseum, Terra watching a young Sora and Riku sparring, Terra defending Ventus at the Maw instead of the Land of Departure, and Ventus requesting Terra and Aqua to erase him at the Destiny Islands instead of the Keyblade Graveyard. Most of these can be chalked up to the assets for the new worlds like Land of Departure not being done at the time of the trailer's release.
    • The Jump Festa trailer features a scene where Ventus sees Cinderella arrive at the ball; in the final game, Ven exclusively explores Cinderella's house and cannot visit the palace.
    • Another Titan from Hercules was considered to be added as a Bonus Boss in the Final Mix version instead of Monstro.
  • Word of God: Following the game's release, an Ultimania interview with Nomura was released to explain certain things that happened within the game
    • The encounter with the Bonus Boss called Unknown is canon for all of the characters. It's supposed to happen just before each character heads to the Keyblade Graveyard for the final time.
    • Nomura confirmed that the culprit who stole Aurora's heart was actually Master Xehanort and Maleficent.
    • The Flood Unversed represents the negative emotion of irritation.
    • The hero that Zack says Terra reminds of him is Sephiroth. Nomura goes on to explain that since the game is set a decade before KH1 and KH2, it is unclear if Sephiroth was a being of darkness at this point.
    • Despite not being an official master like Aqua, Terra has met all the necessary qualifications of being one, which is why he was able to perform the Keyblade Inheritance ceremony with Riku.
    • Notably, Donald and Goofy are at the Mysterious Tower, despite not recognizing it in KH2 which is set ten years after this game. Nomura jokingly stated it was because the floors are constructed differently.
    • When asked why Xemnas doesn't seem to wield a Keyblade when his human self could, Nomura stated that it was possible that Xemnas could have used a Keyblade, but intentionally didn't for some reason.


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