I'm Mexican and it's going over my head

I was banned from r/memes for posting this

wtf is that thing

Peter I am disappointed in myself that I didn't know this, who is the character here

Petah what's the joke?

Petah, explain to me what this means.

Peter give your wisdom

Peter, do you need therapy?

But for real though, I am not sure if this is a reference to something or if its literally just "Random Good thing vs Horrific Bad thing".

Peter, I'm not in UL yet in Battle Cats. What level is this meme supposed to depict?

Peeetaa?

Did something actually happen that day or is it just a random shitpost?

Nothings showing up on Google so I'm assuming it's some sort of inside joke