There are anime homages, Hanna-Barbera references, mecha fights, in-universe superheroes, and much more while establishing Tartakovsky's storytelling style in a way that made "Dexter's Laboratory ...

Dexter, a boy-genius with a secret laboratory, constantly battles his sister Dee Dee, who always gains access despite his best efforts to keep her out, as well as his arch-rival and neighbor, Mandark.

These were animated shorts that later got turned into full animated series like "Dexter's Laboratory," "Johnny ... heartwarming superhero alternative to the darker and more grown-up Bruce Timm ...