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The game itself. The most iconic Final Fantasy characters ever, including: Cecil, Terra, Cloud, Garland, Kefka, Sephiroth, and many more, in a battle to decide the fate of all Final Fantasies. That means this game has the highest stakes of all.
Just the above scene. The Warrior of Light slowly ascending to Chaos's throne while badass music plays and we see the other heroes in turn, each one focused and ready to take Chaos down. The Warrior finally reaches the peak and Chaos, undaunted by the ten heroes, goes on to challenge them all. All done to badass music.
Gilgamesh, as he does in so many other ways, barely fails at beating Chaos to a Title Drop with his "Ultimate Illusion".
The intro emphasizes pretty well the ridiculous extremes to which the Rule of Cool is taken for this game to exist. It is a five-minute long Square-animated CG FMV sequence of the twenty combatants in one gigantic battle royale that includes, among other such moments, Squall squaring off with Sephiroth while running up a glacier, Zidane and Kefka clashing in midair, the Warrior of Light, the Onion Knight, Cecil, and Cloud all ganging up on Garland, the Onion Knight dodging one of Cloud of Darkness's gigantic particle beams, Tidus and Zidane pulling a Fastball Special against Exdeath, Terra and Ultimecia having a long-range magic duel, Firion swinging through the air on a grappling-hook-knife-thing after being knocked off the platform by Jecht, Tidus dodging Kuja's insane magic barrage, Cloud and the Warrior of Light protecting Terra from a lethal attack from The Emperor... the list goes on and on. Perhaps the greatest thing is that practically all of these physics-defying extravagances are actually more or less achievable in the gameplay itself, subverting Cutscene Power to the Max for the first time in a Square game in a long time.
The Fastball Special Tidus and Zidane pull off? Both of them are in midair. Tidus jumps into the air just fast enough for Zidane to wrap his tail around Tidus' ankle so Tidus can essentially kick him at Exdeath. Now that is an Indy Ploy.
How the Warriors of Chaos first appear to the Warriors of Cosmos before the fight: against a volcano, while the image of Chaos is formed in the spewing lava behind them.
The game's sequel's intro still has all of this and more. Due to the new character additions, it also includes Kain jumping down in the middle of an already incredibly awesome fight between Cecil and Golbez, Sephiroth and Tifa fighting (with some really awesome dodging on Tifa's part), Laguna swinging on a rope and shooting at Ultimecia as she fires a barrage of magic attacks back at him, Tidus and Jecht dueling each other, and Lightning facing off against Garland.
Squall and Zidane's Destiny Odyssey modes provide a twofer: Squall goes to confront Ultimecia alone, and when she congratulates him for being heartless and selfish enough to abandon the other heroes, proves her wrong with a speech declaring his belief in the Power of Trust and the Power of Friendship. He announces his willingness to take on both Ultimecia and Garland by himself to make the others' lives easier, preparing to fight both of them at once...
Honestly, that entire speech by Squall, I could see what was going to happen (that someone would show up and help; I just had no idea who), and it didn't detract from the sheer awesomeness of the scene AT ALL.
Squall: It's because of them that I can't allow myself to stop. (summons out his Gunblade) I know that I'm not alone. That's why I can fight by myself!
Ultimecia: Interesting... Then fight you shall.
Garland: Haha. Yes, against the two of us.
Ultimecia: Will you still feign bravery?
Squall: This is better for me. If I can defeat both of you, then it will make it easier for them. I'll prove it to you. We may be apart, but we still fight together!
The Ex-Bursts alone are worth mentioning; all of them do something truly badass. Whether it be a simulation of their Limit Break from their respective game for most of them, Jecht almost parodying his own son's by doing the same things he does with a Blitzball with a meteor, the Cloud of Darkness laser-beaming the target into oblivion, Onion Knight reducing the fighting game momentarily into menus... Particularly Bartz using almost ALL of his allies' weapons in his Game-Breaker setup from the game that he came from, and Exdeath using the power of the Void to crush the target with his bare hands.
Before the final battle in every Destiny Odyssey, the villain-hero pair each get these. We'd say examples, but all of them deserve a mention.
Warrior of Light's is a beautiful hero moment: to Garland, upon vowing to end the eternal cycle of fighting and death they're locked in — "Whatever destiny the world may hold for me, I will never give up. This battle shall come to an end, and I shall save you too!" There's also the fact that it's one of the only sword fights in the cutscenes.
The Emperor traps Firion and conjures a ring of energy orbs that explode and seem to knock him out. Firion's weapons float up from his limp form and fly forward, almost impaling the Emperor. Firion then gets up and calls his weapons back, holding his sword in front of his face ready to fight, and proclaiming that as long as he is alive, he will never give up.
The Emperor: Pitiful insect! What can you do?! Firion: Believe in the future, and persist in the present!
Also, following the Emperor's defeat in the Shade Impulse, he asks what on earth Firion is. Firion's reply? "Just a swarm of insects."
Of course, Cecil, Bartz, and Cloud have their own echoes for him, too, but Firion's just stands out as most awesome.
How about the Onion Knight trying to get in a crowning moment, only to have the Cloud Of Darkness completely shut it down and have one of her own instead, shooting him in the face with her Particle Beam after making him look completely out of his league?
Cecil fighting Golbez in both his Dark Knight and Paladin forms, and taking more pages out of Kain's book than just his lance.
After spending his entire storyline running from villains, Bartz stands his ground against Exdeath. He gets knocked down, and Exdeath tells him to stop fooling around. Bartz leaps back, summons the Revolver and Buster Sword, and declares that he's being serious. He then proceeds to pummel Exdeath to the point that Exdeath has to teleport to avoid getting hit. There isn't a fanboy/girl who didn't squeal when Bartz dual-wielded Cloud's Buster Sword and Squall's Gunblade before attacking Exdeath.
Terra faces off with Kefka while her friends hold off the Cloud of Darkness. Kefka proceeds to unleash a metric fuckton of explosive spells at her. Terra responds by running the fuck away, culminating in using a Teleport spell to escape when she can't run anymore. Kefka appears directly behind her in a capsule and shatters the glass, Force Repulse style.
The second of three sword fights, and the ones who started the legend of Square's fight scenes, Cloud and Sephiroth fighting in midair (callback to Crisis Core) until Cloud knocks Sephiroth to the ground. Sephiroth rights himself in midair and flings Cloud away (Advent Children reference), then taunts him. Cloud insists his own will, and their fight begins again with a recreation of the iconic face-off from FFVII.
As Squall attacks her, Ultimecia freezes time, moves out of the way, surrounds Squall in a flurry of magic bolts, then unfreezes time to bombard him. Squall survives and declares he doesn't care if she controls time — he still plans to beat her. We should note that as we said above, before this, Squall was so awesome that Zidane had to pull off his own CMoA to tell him he was showing off too much!
This one is especially awesome, as it's a Crowning Moment for BOTH the hero and villain. Ultimecia pulls an awesome move, basically using her Ex-Burst on him, only to have Squall block the entire thing, unlike Onion Knight and Firion, who got smacked down in what should have been a KO (of course, given the battle system, what is and isn't a KO is constantly in flux; maybe they didn't have enough Brave points.)
Let's recap how Squall survives. He's in the middle of a Blasting Zone, and when time starts again, he destroys half the projectiles surrounding him with the finished strike. Then he dodges and blocks the rest, before incinerating them with a Fated Circle.
Zidane and Kuja use the cutscene to show off their wall running and gliding, in addition to showing off their knowledge of theater.
Tidus attacks Jecht, but Jecht shrugs it off and knocks Tidus half-way across the arena with one punch. He then goes over, lectures him on how he never stood a chance, and then starts to leave after saying that Tidus will feel better tomorrow. Tidus slowly gets to his feet and calls Jecht back to keep fighting.
Tidus: "Where are you going? There's no tomorrow for me... UNLESS I BEAT YOU TODAY!"
On top of that, this is the only time Tidus and Jecht get to fight one another, man-to-man. In Final Fantasy X, Jecht and Tidus never really got to cross swords, so this is a beautifulWhat If? scenario.
Pretty much any time the characters quote or paraphrase themselves from their original game is bound to get at least one fan squealing. And of course, half the dialogue in the game parallels, paraphrases, or directly quotes the original series.
Even better, he manages to be one of the few to actually give a satisfying response to the villain's last words.
"I couldn't stand a day without a past or future. I need to live each moment — to keep fighting here and now."
For the player: Beating Chaos in Inward Chaos.
Just before that, seeing all ten Warriors of Cosmos lined up to fight Chaos, with cuts to each one from Tidus to the Warrior of Light walking up the steps. That is epic, that is awesome, that is exactly what this game is about.
How about beating Feral Chaos in Dissidia 012?
Though you probably went Oh, Crap! when you first saw it, it's hard to deny that Utter Chaos may be one of the coolest attacks in the entire series. Chaos leaps off the stage, grows to giant size, and then grabs one of the pillars stuck into the ground in the background of the Edge of Madness stage, revealing it's actually a BFS the size of a city bus. He then unleashes four attacks against you, finishing by leaping back, summoning three more swords to his empty hands, and hurling them into the sides of the stage to make it explode. As Chaos watches the arena be engulfed in flame, the screen fades to white and then back in, where Chaos is on his throne watching as either your fighter stands before him (if you avoided the final hit) or falls to the ground in front of him (if you didn't), and he stands to continue the match.
Feral Chaos' "Regnum Dei" is a triumphant example of The Fourth Wall Will Not Protect You. Feral Chaos hurls his opponent into their own EX Burst background, and then throws them through it into a fiery hellscape. He then has 20 seconds to beat them down now that they have nowhere to run, and all of his attacks cannot be blocked. He ends it by performing a Neck Lift on his opponent and holding them aloft so several of his swords can impale them from all directions, and then (from the perspective of his victim), he thrusts his claw towards them and the screen "turns off" to provide a Gory Discretion Shot of whatever Feral Chaos does to deal the final hit.
This could also double as a crowning moment of funny. But when Terra ends up getting Kefka to say "sorry ma'am" is fricking awesome!
In 012 Duodecim, while the other six remaining Warriors of Cosmos set out on their mission to stop the influx of manikins, the Warrior of Light stays with Cosmos as her last line of defense... and faces down the manikin horde, fully prepared to go down fighting to keep them away from Cosmos and take as many with him as he can. He faces at least as many manikins as the other six warriors do, and he holds out just as long.
And then, at the end, when he finally runs out of strength, Cosmos comes to HIS aid. After a game and a half of seeing her do nothing but sit on her throne, silently expending her powers to counter Chaos's, we see what happens when she abandons that position. She rises from her throne, and defends the Warrior of Light with a radiant shield that annihilates the entire Manikin horde. The effort causes her own death, but we finally get to see what she would be capable of were she not under constant assault from the power of discord.
Speaking of which: Lightning, Vaan, Yuna, Laguna, Tifa, and Kain's headlong assault on the source of the manikins, complete with a battle royale versus Garland, Kefka, Emperor, Cloud of Darkness, and Ultimecia, a You Shall Not Pass! by Kain, and ultimately a group Heroic Sacrifice to close the rift so that the other Warriors would not be overrun with manikins in the next cycle, is also pretty awesome.
The above undermines Kain's contribution. He has been going around for who knows how long, trying to prevent his friends from being permanently erased by the manikins by offing them himself. He then has to face Exdeath, and then a pack of manikins assuming his own form. He then saves Tifa from Ultimecia. He's somewhat reinvigorated by a Potion Tifa was carrying, but then has to face both Exdeath and Golbez (well, mostly Exdeath, seeing as Golbez was pulling his Stealth Mentor shtick as usual) as he tells the group to go on ahead and stop the influx of manikins. After he's done, Kain is shown to be weary and battered from the fight. And he tells Golbez that he's still adamant on facing what is certain death against the manikins, earning the thanks of Golbez for saving his brother Cecil. He then drags his broken body and catches up to his allies just in time to face the manikins, and fightsto the bitter endagainst his foes alongside the others. And he charges into the fray. Not a light jog like the others; he goes into a sprinting crouch start position and takes off in a blur of wind. He's shown to be the third-to-last to finally go down (after Vaan, and before Tifa and Lightning). As said above, this prevents the manikins from overrunning the next cycle. Truly theDeterminator to end all Determinators.
Exdeath: So, you offer your life in exchange for theirs?
Kain: Of course not. I offer yours.
And then after defeating Exdeath, Kain facing down a swarm of Manikins in his image (which have been established to be merciless, cold-blooded killing machines) and gives what can only be assumed to be another Pre-Asskicking One-Liner which doubles as a "No More Holding Back" Speech.
Kain: Abominations, can you hear me? Do you even have minds of your own? If you're aware of the world around you, you'd best rue the day you came here. I'm about to teach you pathetic mockeries the difference between you and a real man!
Kain gets another moment when he faces off against Exdeath again. Exdeath points out that the end of the cycle is coming, Kain's friends are dead or about to die at the Rift, and that the forces of Chaos are going to win, not to mention the fact that Kain is wounded and weary from fighting too many Manikins and about to face a full-strength Warrior of Chaos.
Cloud in Duodecim. Back in the 12th cycle when he was a Warrior of Chaos, he saved Tifa from Sephiroth. After already having doubts about his role in the conflict, meeting Tifa makes him realize he's fighting for the wrong side. So he goes to talk to Cosmos, right? Nope. He goes and picks a fight with Chaos. It didn't end well for him, but he has brass balls to try.
Chaos himself did pretty well here. Statistically, he's merely at level one, so you expect a quick victory, right? Wrong. He's just as fast and deadly as in the original's final battle (which is very bad, given Cloud's Mighty Glacier tendencies). When Cloud "wins"? Chaos laughs it off, insults Cloud's strength, and proceeds to frag him with a giant energy beam. He then gives the dying Cloud a brutal "The Reason You Suck" Speech that doubles as a Badass Boast; telling him that he and his "vaunted blade" have changed nothing and that all he has accomplished, and all he can ever hope to accomplish, is hastening his own destruction. This proves that, before finally losing his drive in Shade Impulse, Chaos was not one to be fucked with.
Thus it becomes ever so delicious to beat his ass with Cloud in Shade Impulse.
Yuna is Martial Pacifist in trying to peacefully resolve the conflict between Brainwashed and Crazy Tidus and Jecht, but when The Emperor shoots him, she doesn't ask questions, plead, or let her guardian take care of it. She just beats the crap out of him. Twice. So simple, but so elegantly awesome.
Yuna's involvement in the story itself is one big CMOA for her. In contrast to how she would stand back and coach her Aeons from the sidelines in her game of origin, she's right up front with them now, diving headfirst into the heart of battle and guiding them personally in their assault, all while retaining the beauty, grace and elegance she's so well known for. The fact that she's also a seasoned fighter by the time of the 12th cycle while Tidus is revealed as only just showing up is just the icing on top of the badass cake this game built for Yuna.
Every intro against Feral Chaos where a Warrior of Cosmos or Chaos enters into the scene second gives them a delightful or spine-chilling one-liner before the battle begins (Well, aside from Vaan being hilariously nonchalant about the whole thing, but the fact he's nonchalant in the first place is awesome enough for the amount of balls he has).
Lightning's opening quote during her fight with Warrior of Light:
Warrior of Light: "Toss aside your blade, and say goodnight."
In Scenario 000, once you start to close in on Feral Chaos, the BGM suddenly shifts to "Canto Mortis", which replaces every other BGM track for the Scenario's previous areas. If there was ever a theme that said "shit just got real", its this one.