* First and foremost, the simple premise of the comic itself: a kid is granted the magic power to instantly become an adult FlyingBrick SuperHero anytime he wants.
** Related to that is those grand moments when knowledgable villains go OhCrap finding Billy is free to speak and yelling the magic word, "'''Shazam!'''" That especially goes with great artists like Don Newton who are able to convey that awesome moment for all it's worth.
* His life long rivalry with Superman could also be considered this. Back in the Golden Age, when Clark and Billy were owned by different companies, their constant competition to outdo each other is what resulted in them from going from 'leaping tall buildings' to flying and from 'more powerful than a locomotive' to 'moving mountains'. They were both so popular that who was selling more than whom would change month to month. In the age of superheroes that Superman created, Captain Marvel was one of the few characters Clark could be considered a true peer.
** This carried over once DC Comics purchased licensed and then purchased the Fawcett characters for their own use. While many writers consider Superman to be the most powerful hero in DC Comics, often downplaying other heroes to showcase this, Captain Marvel has been one of the few heroes who can consistently fight Superman as an equal. While writers Grant Morrison and Jeph Loeb attribute this to Cap's magical nature, most other writers simply write Cap as being powerful, skilled and determined enough to match Superman strength for strength and blow for blow. In Comicbook/KingdomCome , even when Superman is at the height of his power and all but immune to Kryptonite, Lex Luthor feels Captain Marvel can still match the Man of Steel (at least physically, Lex's brainwashing allows Clark to outwit Billy during their battle).
** This is actually backed up in universe, as people such as the Martian Manhunter, the Flash, Batman, Aquaman, Starman, Eclipso, the Atom and Superman himself have all commented on Cap being as powerful, as strong, or the logical choice to face Superman.
* Film/TheAdventuresOfCaptainMarvel was the first superhero film in history, starring the Big Red Cheese himself.
* Comicbook/UnderworldUnleashed had Cap as part of a Justice League team sent into Hell itself to rescue Superman from Neron, who is basically DC's version of The Devil at this point. However, once they arrive they discover that Superman isn't there, and that it was Captain Marvel's soul that Neron wanted all along due to its purity. The influence of Neron and the center of Hell warps the other heroes, letting Neron goad them into attacking the Captain. Despite starting the fight with a broken arm, Cap actually holds his own and seemingly defeats the League, and then offers up his soul to Neron willingly. The purity of both Cap's soul and with which it was given actually defeats Neron and saves the day. That's right, Cap's soul was so pure it DEFEATED THE DEVIL.
** This actually isn't the first time Cap has faced the Devil. During his World's Finest days when Don Newton drew the book, one of Cap's regularly occurring foes was Satan himself. Yes, Cap actually had Satan himself as a regular opponent.
* [[ComicBook/{{Justice}} Justice]] issue 5 qualifies. Superman has just been blindsided by Bizarro, who tackled the Man of Steel into the middle of the street so Solomon Grundy could help beat him down. Then Metallo shows up and begins weakening Superman with his Kryptonite heart while the Parasite drains Superman's powers and begins to join in the beat down. All in all, Superman is helpless, wondering why none of the JLA are responding to his distress call, and finally cries out for help. Just then a lightning bolt flashes across the sky and all of the villains get an "oh shit" look on their faces as a red and gold blur comes down and proceeds to take them apart. Bizarro? Punched into orbit. Metallo? Kryptonite yanked out of his chest. Parasite? Had that Kryptonite jammed in his chest, and since he had stolen Superman's powers, was instantly defeated by it. Solomon Grundy? Beaten unconscious into a crater. In the space of a page, these four powerful villains are handily and decisively dealt with. The blur finally slows down enough to reveal who it is, offering a hand to help Superman up.
--> '''Captain Marvel''': "It's okay Superman. I got your signal. It's going to be okay."
* WesternAnimation/SupermanShazamTheReturnOfBlackAdam showcases a slightly tweaked, animated version of Capt. Marvel's origin, with Superman protecting Billy from Black Adam until the wizard Shazam can make Billy his new champion. Initially, Black Adam has an edge on Billy and Clark despite all three being roughly as powerful as each other; Adam has more experience than Billy and has a magical attack that gives him an unfair advantage against Clark. However, once the two start working together, Adam find himself outmatched. [Spoiler It gets worse for Adam later when he threatens and innocent civilian. Billy gets so mad at this that he delivers unto Adam a VERY satisfying NoHoldsBarredBeatdown.