The 1000 Heartless Battle, period.

Demyx, of all people, gets one in his second encounter with Sora, Donald, and Goofy. At first, he acts like The Ditz that he has been while the heroes treat him more like an annoyance than an actual threat. It is then when they resolve to rub salt in the wound by telling him that he has no heart, that Demyx snaps, telling Sora to shut the hell up and summoning his sitar in a incredibly epic fashion. Cue one of the hardest bossfights in the game. This moment was the only one in the whole game in which This Troper was grinning all the while getting his ass handed over to him. Wow, Demyx.

In the first game, when Sora realizes where Kairi's heart is and plunges his own keyblade into his chest, basically committing suicide. In a DISNEY game. Disregarding that whole back-as-heartless deal.

Sora dual-wielding two Keyblades and beating the hell out of Xemnas.

• Specifically, during the end of the final (final) final final boss fight in the second game, after he and Riku deflect a Beam Spam from Xemnas, during which Riku is heavily injured and passes his Keyblade to Sora, who proceeds to go to town on Xemnas in what might have qualified as a curb-stomp battle if it weren't for the fact that this is occuring after you've reduced him down to his last bar of health. Then, in a massive subversion of the games usual seperation of gameplay and storyline, uses the Keyblade's "locking" beam- the one one which can unlock and lock the keyholes and pathways of the world- to stab Xemnas straight through the middle.

Auron's entrance in Kingdom Hearts II.

This is my story. And you're not a part of it.

Beast is only there in the first game because he ripped through the dimensions by sheer force of will! And good thing he did, because he saves your ass.

When Roxas draws out both Keyblades...

A-hem. Kairi one-hitting everything in sight with a freaking flower-covered key?

And Goofy's Heroic Sacrifice after the Demyx battle. And King Mickey's reaction... *chills* -"They'll pay for this". Awesome.

Roxas versus Riku. Has to be one of the best parts in the entire series.

Axel in the original Chain of Memories: "All the actors are in place. Now, Sora! Naminé! Riku! Marluxia! Larxene! It's about time you gave me one hell of a show!"

One for Riku in the first game. Sora just defeated Riku who was possessed by the Big Bad and used the dark keyblade to free Kairi's heart, turning himself into a heartless in the process. Kairi awakens and is faced by the possessor, Ansem, who prepares to destroy her. Riku then materialises with a golden glow and holds Ansem back, giving her time to escape.

Roxas Vs Xion Final Form. The BG Music helped alot.

Aqua whooping Vanitas's butt in Neverland in BBS. Vanitas who up to that point had been an unstoppable Bad Ass is knocked flat by the character who seemed to be The Chick of the game. And in the not in the whole "Get's up 5 seconds later laughing about what fun he's having" that he pulled before either. He's out cold for real.

In Kingdom Hearts II, When Belle elbows Xaldin in the ribs and takes back the stolen rose.

All the final boss battles of KH the original. Those were some intense gaming moments.

"There's no way you're taking Kairi's Heart!"

At the end of the original Kingdom Hearts, the reappearance of Riku helping to close the final door, and King Mickey saying: "Donald, Goofy, thank you."

ASSAULT OF THE FUCKING DREADNOUGHT!

Goofy saving Sora in the first game when he loses his Keyblade to Riku at hollow bastion (first visit) when he was about to get his ass handed to him with a dark fire ball.

Birth of Lingering Sentiment

"My friends are my power!"

The Secret Trailer for Birth By Sleep in Kingdom Hearts 2