The Process Forum

I could see this being a limited run miniseries, honestly.

Also, does the synopsis remind anyone else of Kingdom Hearts?

Pibby is a cute little girl who stars in her own educational cartoon for preschoolers (Learning with Pibby), learning about spelling and caring with all of her cuddly animal friends. This all comes to a screeching halt when a glitchy, eldritch blob suddenly invades her world, consuming and absorbing all of her friends. Just as she is about to be eaten herself, Pibby finds herself in the credits of her own show.

Soon, she finds herself traveling to other worlds – that is, other cartoons (both real and fictional) – and discovering that they are also under threat of being assimilated into this nightmarish abomination. While her newfound allies doubt that they'll be able to deal with such an apocalyptic problem, Pibby holds out hope that there's a way of beating back the darkness – but before then, she'll need to learn a lot more than she bargained for.