Wild ARMs/Awesome

Wild Arms 1

 * Right after body-charging Zeikfried off a platform towards a black hole, Zeikfried ensnares Rudy's left arm with some kind of metal cord, and nastily gloats to Rudy about how they're Not So Different and how if he goes down, he's taking Rudy with him. Rudy's response? It's one of the biggest "holy SHIT!" moments in the game, mitigated slightly by the terror you feel for Rudy...which only increases when you then discover
 * McDullen/Magdalen, Jane's Battle Butler, gets one in Alter Code F when he joins the battle by non-chalantly tossing his coat on Alhazad, the Quarter Knights' second-in-command.
 * Cecilia gets hers when she Ladies and gents, this is why the Rudy/Cecilia ship exists.
 * Jack, faced with The End of the World as We Know It, with his love and the evil MacGuffin being used as the fuel. He stands up despite facing this enormous power and slashes the hell out of the Darkness Tear, destroying it and saving the entire planet from the disasters it was causing. Insane.

Wild Arms 2

 * The entire final battle is a CMOA for pretty much the entire cast, assuming you can get past the friendship speeches. Made all the more awesome by the Theme Music Power-Up used, which was a kickass battle remix of the first opening song and is quite possibly one of the greatest pieces of video game music ever composed.
 * Brad's Big Damn Heroes moment. Saving the skin of the party by arriving with a Rail Gun, which he uses to heavily damage the Vinsfeld's warship.
 * Can't forget Ashley getting his Access for the first time complete with a Theme Music Power-Up.

Wild Arms 3

 * Maya Schroedinger kicking Siegfried's ass so hard that the plot had to come up with a new villain for the heroes to fight.
 * Asgard  to help his masters,  . Now that's what you call an Implacable Man.
 * Lombardia The attack animation isn't actually any different, but it's such a coup de grace moment that you can't help but cheer in victory.

Wild Arms 4

 * 'Arnaud killing Scythe by crashing a squadron of fighter jets right on top of him.
 * Resident Mighty Glacier and Lady of War Raquel, challenging Hugo to a fight after seeing his ability to move while time is stopped, and proceeding to block every single one of his strikes by taking advantage of the short interval at the point of his attack when he has to continue the flow of time.
 * using a pair of shotguns to shoot down all of Lambda's missiles in mid-air, breaking every law of physics along the way. While giving a Crowning Speech of Awesome. And then? He punches the one he didn't have a cartridge left for, keeping it from blowing the heroes out of the sky.

Wild Arms 5

 * The manner in which the party begins the final battle:  Best. Final boss intro. Ever.

Wild Arms XF

 * The party defeats the final boss, who promptly regenerates with an As Long as There Is Evil type speech.  Awesome.