THEORY TIME!!!
We all know Mike Believe, right? In his debut (and only) episode, "Imaginary Fiend", he created an imaginary friend named Patches that caused trouble at Pokey Oaks. Patches was only defeated because the Powerpuff Girls created an imaginary friend of their own to fight him.
Question #1, how did the Powerpuff Girls create their imaginary rabbit friend?
Simple...they didn't. Their friend only existed because Mike BELIEVED it. I headcanon that Mike has the ability to will things into existence, and he just isn't/wasn't aware of it yet. He believed that the girls could create an imaginary friend and stop Patches, so they did. If we take this a step further, Patches could've been created as a result of Mike's intrusive thoughts (which can be caused by stress and anxiety, and as a five year old with no friends in a new school, I'd imagine he'd have those in spades) which was why Patches was so violent and defiant in the first place.
And if we take another step forward:
This could explain why these three characters (and the unseen Tooth Fairy in "Moral Decay") exist within the PPG universe. Sure, "Imaginary Fiends" aired after "Dream Scheme" and "Boogie Frights", but who said all of the episodes aired in the order of which they occured? What if Mike was already living in Townsville and just attended a different school at the time?
And you might also ask yourselves, why does Mike just randomly have superpowers?
Newsflash! Plenty of characters exist in the PPG-sphere that have superpowers without any Chemical X:
Funny how they all have the same color scheme, might mess around and headcanon that they're all related, idk 😏😉
Idk, I just think this could really make Mike a more interesting character.
