Another side, Another story...

Another side, Another story... is a "secret movie" seen after the ending of Kingdom Hearts if the player accomplishes certain tasks. The concept was later expanded in Kingdom Hearts Final Mix ' s secret ending, Another Side, Another Story [deep dive].

Requirements
To see "Another side, Another story," the player must beat the game after having done each of the following:


 * Complete the Hades Cup (as a complete party)
 * Find all 99 Puppies
 * Seal every Keyhole, including those of Olympus Coliseum and 100 Acre Wood

Alternativly if one beats the game on Expert difficulty and seals every Keyhole the video is unlocked.

To see "Deep Dive," the same criteria goes, along with also completing the Jiminy Reports section 100%.

Another side, Another story...
During a storm, a hooded Roxas walks through the Dark City, located in the The World That Never Was, towards the Memory's Skyscraper. He stops, looking up at the screens, and then notices many Neoshadows rising up from the ground, surrounding him. The camera moves to a blindfolded Riku, in a Black Coat, on top of Memory's Skyscraper. To defend himself, Roxas pulls out the Oblivion and Oathkeeper Keyblades. Riku looks to the sky, where clouds part to reveal a meteor shower. A purple, glowing heart shape surrounds Roxas, reminiscent of the Heartless symbol, but without the crossing thorns. Riku takes off his blindfold. Roxas asks a question: "Where's Sora?"

The screen blacks out, and suddenly, many quotes fly by, ending with "We'll go together". A flash, then the words "Kingdom Hearts" appears. It fades to a beach where an early version of an older Kairi looks at a meteor falling near Destiny Islands.

Another Side, Another Story [deep dive]
The video starts with a flash of Sora standing in the Crossroads looking up at the sky, followed by a black screen with the words "Utter Silence". The camera zooms backwards out of something that we see as a message in a bottle on the Dark Meridian, with the quotes "A fragmented tale," "A world without you," and "The eyes will close" appearing on screen. We see a shot of the Dark Meridian. Then, nearby, Roxas arrives via a Corridor of Darkness. One eye is briefly shown, glowing yellow, and he walks forward. The screen gets fuzzy and blacks out, showing another quote: "Something so natural."

The screen cuts to the Dark City, while Roxas walks slowly towards the Memory's Skyscraper in the pouring rain. He is surrounded by hundreds of Neoshadows while holding Oathkeeper and Oblivion. The next scenes involve Roxas engaging the Heartless, easily destroying three. The screen blanks as letters and kanji move like a wheel and form "The memory beyond." Roxas engages the horde of Neoshadows, ripping them apart with his Keyblades, using all of his limbs to do so (as shown when he kicks a Neoshadow away from him). At one point, several Neoshadows jump high in the air. Roxas notices this, retreats a bit, and jumps high into the air with them.

He tears apart the Heartless close to him, and then throws Oathkeeper to destroy four Neoshadows above him. Once the Oathkeeper is back in his hand, he backflips up to the porch of Memory's Skyscraper, landing in a right-handed stance with his left sword out, perhaps thinking or acknowledging that the Heartless horde is endless.

Roxas looks up at the screens of the skyscraper. The screen blanks again, showing the phrase "Something so simple." Roxas sees Riku looking down at him. Roxas is shown to smirk, and in an impressive and impossible demonstration of free-running skills, jumps up to the side of the building, and begins running up the wall. The Heartless already there as well as new ones that rise out of the windows in his wake follow him, as more try to cut him off ahead. The screen blanks and the numeral XIII as well as the quote "Where's Sora?" and "We must find him" are shown. Roxas hurls Oblivion at Riku, who chooses precisely that moment to leap off the roof. Oblivion easily cuts through the Neoshadows on its way to Riku.

The screen blanks as the number 12 "[Ansem's other report]" and "A creation born of ignorance" is shown. Riku catches Oblivion as three Neoshadows leap down after him. The screen blanks as the number 11 is shown. There is an arrow that points from the last two quotes to "Behind the Darkness ≠ Door to the Light." The two Keyblade wielders close in on each other as the numeral X appears, as well as the quotes "The secret place "His voice... It's left me." "This time... I'll fight.". These are to the right of the quotes shown behind number 12.

Also in this scene, if you look closely, you can see Roxas' Oblivion has been replaced, holding the Kingdom Key in his right hand as he passes Riku, who is holding Oblivion (Another intriguing and comical mistake, Riku seems to be facing outward at first, with the Oblivion pointed away from Roxas, and then when they pass is seen to be facing inward, having to move Oblivion as they pass each other, then outward again when they've passed). Roxas is seen either continuing up or trying to turn around on the screen. Scenes from the first video flash, as well as the number 9 and the quotes, "A world between = A forgotten world" and "The gathering" appear to be below #12's quotes. Previous scenes continue flashing as numerals VIII and the quotes "''The third enemy = Nobody "Who is Nobody, you ask? They are the nonexistent ones..." ''" appear (and seem to be below number 9's quotes). Numeral VII and "What took you so long Kairi?" and "Can we do it? Against that?" appear below and to the right of #8's quotes.

The Dark Meridian is briefly shown with Roxas walking towards a hooded figure on a rock, the camera getting fuzzy at the end. After several more clips, during which appear Heartless "We have come for you, my liege." "You are the source of all Heartless.", the number 6, [The Thirteenth Order], ''Metamorphosis, "Sora?" "Sora... why?" "Your Highness! But why?", the number 5, "change" "the third key", the number 4, End of the World "What is this place?" "Is this the answer you've been looking for?" "This is the world in its true form." "Maybe our journey was meaningless after all.", the number 3, Paradise, "We'll go together."'', and lastly the numeral II, King Mickey, in an Organization XIII coat, is shown flipping through the air and landing on the rooftop of the Memory's Skyscraper. (In the flashes, we see Riku killing a large number of Heartless with the Oblivion on his way down to the ground.)

"Kingdom Hearts" then appears on the now black screen. The kanji for "I've been to see him." appears at the bottom of the screen. Back on the Dark Meridian, Roxas finishes his walk towards the figure on the rock. A hooded Xemnas turns to Roxas and speaks to him (his voice is not heard, but his mouth is seen moving). The quote comes on the screen "He looks just like you" (which just so happens to be what he said). Sora is then shown flying over a vast expanse of ocean, seemingly asleep. The screen again blacks out and the final quote, "Everything is coming back to me, the true...", appears, before fading out.

Quotes

 * "This time I'll fight."
 * "Behind the Darkness."
 * "This is the world in its true form."
 * "You are the source of all Heartless."
 * "Maybe our journey meant nothing after all."
 * "Who is Nobody you ask? They are the non-existent ones."
 * "Is this the answer you've been looking for?"
 * "Changed, the third key."
 * "What is this place?"
 * "It's not over yet."
 * "We'll go together."

Application to subsequent games
"Another side, Another story..." was meant as more of a concept trailer, showing whatever ideas Nomura had for a sequel at the time; it is not meant to be taken as an actual part of the storyline for the games. Nojima, the scenario writer, explained that, after the story for Kingdom Hearts II was written, he had to go back and find places to put in the seemingly random quotes found in both "Another side, Another story..." and "Another Side, Another Story [deep dive]" The idea of the Keyblade wielder was affixed to Roxas, and the blindfolded male is Riku.

The quote "The Third Enemy = Nobody" implies that the Unversed and the Heartless are the First and Second Enemies. Although a flashback in Birth by Sleep depicts several Neoshadows before the appearance of the Unversed, the Heartless did not begin attacking the Realm of Light until the period of Kingdom Hearts. Therefore, it's unclear whether the Heartless are considered the First or Second Enemy. Furthermore, the quote "A world between = A forgotten world. The Gathering." is a possible reference to the scene of the same name found at the end of Kingdom Hearts II, the teaser for Birth by Sleep. Another quote, "Changed, the third key", may reference the change of heart Riku takes in Kingdom Hearts II, with Mickey as the first key and Sora as the second key.

Except for some minor differences, such as Mickey appearing at the ending, the entire Deep Dive version of the video is the ending to Kingdom Hearts 358/2 Days where Roxas confronts Riku at Memory's Skyscraper.

"We'll go together" is the last line spoken by Sora to Riku on the Dark Meridian before the Door to Light takes them back home to Destiny Islands in Kingdom Hearts II.

Trivia

 * Interestingly, Roxas is depicted with glowing yellow eyes, similar to the Heartless, and as he walks through the rock, a glowing, white Heartless emblem briefly appears on his chest.
 * When the video shows the countdown from 13, it stops at 2 instead of 1, just like in old movie openings. Also, 2, 7, 8, 10 and 13 are represented as Roman numerals, while the others are shown normally.
 * When Roxas throws the Oblivion to Riku and they pass each other, if one looks closely, they will see Roxas is now wielding both the Kingdom Key and Oathkeeper.
 * When Roxas looks up in Riku's direction as he fights off the Neoshadows, one who looks closely at Memory's Skyscraper will notice an image of Kairi appear on the screen contained atop the building.

Video
Another side, Another story...