When Allen is recovering from having his Innocence, which is his left arm, destroyed in the Asia Branch HQ, a Level 3 Akuma appears and attacks. After almost effortlessly beating Allen, Bak, and For, the Akuma is dismembered in one attack by Allen's Innocence, which has just reformed and is acting on its own. The Innocence returns to Allen, and he executes the Akuma with a single attack from a single finger.
Also, Lenalee's victory over Eshi, another Level 3. Whenever Eshi attacks, his dark matter clings to the target and weighs it down. Lenalee finally pushes her Innocence to the level where it can negate the dark matter, and she just glares at Eshi as he beats her to a pulp. Then she flies into the air and powers down her Innocence, reactivating the dark matter, which means she now weighs several thousand pounds. She falls into Eshi with such force that she catches on fire and eventually runs him clean through.
Well, that was before her next moment, where her Innocence reformed in the fight against the level 4, and bought enough time for Cross to do the job. And, boy, did Cross do a job.
Don't forget Krory; his fight against Jasdevi was full of this. He gets put into an iron maiden and is seconds away from death. What does he do? Activate his blood ability and creates a blood clone of himself. Afterwards, he proceeds to kick Jasdevi's ass.
Bookman for managing to steal Kanda's hair tie and escape from Kanda, even though Kanda tore through every other Exorcist and Finder in the Black Order to get it back.
In his very appearance, you knew the guy is meant for awesomeness.
He shot a bunch of Level 3 Akuma from behind without even looking and without bothering to stop smoking.
While we're on the subject of "Every damn thing Cross does," mention needs to go to the time when he shot the Level 4 Akuma that had just gotten up from Allen and Lenalee jackhammering away at it. It stopped the bullet and asked if that was the best he could do. Cross: "Did you only see the one bullet?" Cue Body Horror from a nasty reaction to the eight Innocence bullets it missed.
He can make akuma (at least, the weaker ones) pull a Heel-Face Turn. HE CAN TURN THE PHYSICAL EMBODIMENT OF SIN GOOD! Even if it only lasts a short time, that's pretty damn impressive... no wonder he has so many CMOA.
Cross is so badass that when He is presumeably shot in the head with his own gun by Apocryphos, fans still fiercely believe that he survived and is just biding his time because he doesn´t want to see the 14th take over Allen.
Reever shooting at one of the Skulls for transforming his fellow collegues during the Invasion of the Headquarters.
Then Allen comes along just in time to save Reever by vertically cutting a Skull in half with his sword. Dynamic Entry for the win!
Minor, but as Jasdero is pulling Tyki and Devit in the cart, he manages to run over Skinn, who in which, weighs more than the Earl, while Jasdero (and Devit , going without saying) weighs just over 100 pounds.
When Allen first breaks the critical point and his Innocence becomes africkingsword.
He has another awesome moment just before that when he completely heals the arm that Tyki tried to break a second time and gives a short speech on how the Noah had been underestimating the exorcists, during which he proceeds to scare the ever loving fuck out of him when his innocence makes Tyki experience how it would feel to die. "You Noah take human beings too lightly."
The first time we see Lenalee activate her Innocence and beating up Komurin.
Kanda defeating Skinn Bolic. He killed a Noah, who were so far completely invincible and curbstomped someone on their every appearance. It was by the Skinn of his teeth, but he still was the last man standing.
The first time Allen and Lavi fought with Krory, Lavi swung his hammer down on Krory ... only to realize that his hammer wouldn't move. Krory had caught the hammer's tip with his teeth.
Hell, even the first level 4 akuma gets one when it defeats Allen and the rest of the generals with ease. Even Cross is unable to wound it... at first (see above).
The Earl gets one when he destroys Edo in one huge blast of energy.
Lavi and Kanda lose their ability to activate their Innocence, and Allen is all but wasted against the Level 4. So, Lenalee risks her life to reactivate her innocence and returns to action. Her subsequent tag-team fight with Allen against the Level 4 is pretty awesome.
Also in the fight with the level four, when Lavi and Kanda attack it to save Komui. However, since both of their Innocence weapons are damaged and being repaired they try to fight it off with a normal sword and a freaking flag.
Doubles with Heartwarm - Jonny angrily declaring why he wants to leave looking for Allen:
We of the Science Division exist to support our exorcists, do we not?! Leaving Allen alone is really losing to the "14th"!