It's weird for three reasons:

1. The Powerpuff Girls are children.
2. You technically created them when you knocked The Professor into breaking the vial of Chemical X.
3. You're literally a different species.

Why do all the voices sound like Dexter from Dexter's Laboratory in varying levels of autotune?

This honestly feels like it's progressing how a movie would. A compilation of the whole series could work well as a fan-made movie.

I'm getting the illusion that the giant glob of stuff coming out of his brain is throbbing and I don't know why

Don't let this distract you from the fact that Breakfast Princess was an awful person to LSP and fully deserved her revenge.

Also known as EVIL!!!