The theme would eventually change as the universe expanded, and the show equipped a lighter tone.

But the greatest thing to come out of the series is its iconic theme song.

Arguably one of the most popular superhero themes, period.

Batman: The Animated Series - Standing Over Gotham

Image via Warner Bros. Animation

It was even remastered for the opening ofSpider-Man: Homecoming.

He was thriving in the comics and had an amazing animated series to pair with it.

Fuelled by remorse and vengeance, a high schooler named Terry McGinnis revives the role of Batman.

Batman dropping down into the camera in The Batman

Image via Warner Bros. Animation

Under supervision of an elderly Bruce Wayne, he fights crime in a harsh, futuristic Gotham.

The Avengers: Earth’s Mightiest Heroes is a 2D-animated series based on Marvel Comics' famous superhero team.

Despite its popularity, the show only aired from 2010 to 2012 and was replaced by Avengers Assemble.

The Justice League standing in the animated series opening

Image via Warner Bros. Animation

Amongst the praise lies a lot of love for their catchy theme song.

The Spectacular Spider-Mantheme features action-packed and visually stunning shots playing over the original theme song sung byThe Tender Box.

The Spectacular Spider-Man is a 2D-animated series based on the titular Marvel Comics superhero, produced by Marvel Entertainment.

instar50214755.jpg

Living in the same universe as the critically acclaimedSpider-Man: The Animated SerieswasX-Men: The Animated Series.

Does it get any better than that?

The Dark Knight battles crime in Gotham City with occasional help from Robin and Batgirl.

instar53983670.jpg

Watch on Max

NEXT:The 10 Superhero Cartoons You May Have Forgot Existed

instar50544149.jpg

instar48892493.jpg

An animated version of Spider-Man waving at the screen from the ’60s show

Image via Marvel Comics Group

Spider-Man posing in the opening of Spider-Man: The Animated Series

Image via Marvel Entertainment

Silhouettes of Batman, Wonder Woman and Superman in the Justice League Unlimited opening

Image via Warner Bros. Animation

shutterstock_1354200377.jpg

Cast Placeholder Image

Batman Beyond squinting in Batman Beyond Season 1, Episode 2, “Rebirth: Part 2”

Image via Warner Bros. Television Animation

instar53072092.jpg

Fuelled by remorse and vengeance, a high schooler named Terry McGinnis revives the role of Batman. Under supervision of an elderly Bruce Wayne, he fights crime in a harsh, futuristic Gotham.

instar53989121.jpg

The Avengers: Earth’s Mightiest Heroes Cast

Image via Disney

the character, spider-man, in a red/blue themed spider costume, fighting a giant anthropormorphic lizard

instar47751137.jpg

The Spectacular Spider-Man is a 2D-animated series based on the titular Marvel Comics superhero, produced by Marvel Entertainment. Despite its popularity, the show was canceled after only two seasons and 26 episodes, airing from 2008 to 2009.

instar48820124.jpg

x-men-animated-series

Image via Marvel Entertainment Group

instar50173407.jpg

A group of mutants endowed with unique powers forms a school and team to train others like them and to defend humanity from both human and mutant threats. The series combines action-packed sequences with stories of unity, discrimination, and the ethics of power as they strive to foster peace between mutants and humans.

instar43857728.jpg

instar44649242.jpg

Batman’s shadow standing atop a rooftop in front of buildings

Image via Warner Bros. Animation

instar42886910.jpg