I, Little Sponge, Am Not a Superhero

Superman has noticed that there have been fewer people in need of help in Metropolis lately. Someone has even joined him in rescuing a cat trapped in a tree.

Batman has noticed that something is very off about Gotham lately. The city's villains have been making all sorts of bizarre mistakes, and the wildest case was the Joker, who'd just escaped from Arkham, getting rammed by a car and sent to the ICU before he could do anything.

Iron Man has noticed that he can't make sense of New York lately. Someone actually managed to make a copy of his Iron Man armor, and that suit even played background music automatically while fighting Thanos.

The superheroes gather for a roundtable meeting and reach a conclusion:

Without a doubt, a new superhero has appeared, active all over the world, incredibly mysterious and powerful.

The little sponge, having a great time making friends (and knocking people over) all over the new world without even understanding what a superhero is: ?

Theme: Protect world peace. Evil deeds bring consequences, and everyone who breaks the law should be punished.