Here's a spoof of an 80s childrens' show but get this - the characters engage in acts of bloody over the top violence! It's a switcheroo!

They actually did the "Mario takes drugs" bit; it's called "Mario goes to Vice City."

It might actually be funny if every single internet comedian since 1999 hadn't done some kind of "Mario takes drugs" bit by then.

It's a tricky case. It's not illegal, but typically, engaging in parody is a gentleman's game. Weird Al makes sure the person being parodied is aware and approves of the decision. Mad Magazine has a long standing position as effectively a defanged cultural institution that allows them to do what they do. Artists that use parody for specific purposes are typically using it to make legitimate points about issues they're passionate about.

The Chapman brothers seem pretty content with their lot in life, and that seems more relatable than anything Seth Green has ever done, where he has always seemed actively bitter and envious that he was only ever a character actor and not much else. Plus, Seth Green was in "The Attic Experiments", a stain he will never, ever wash away.

This is pretty borderline in terms of parody, and if challenged I think it wouldn't hold up. Just because HSR has never killed its own characters doesn't mean you can start making your own HSR series so long as it includes wanton violence. I can't put Batman in my movie just because I think it would be funny for Batman to be there.

Similarly, a lot of what Weird Al's songs don't actually qualify under parody law. "Smells Like Nirvana" is clear parody because it is making fun of the band and their unintelligible lyrics, however something like "My Balogna" is just changing the lyrics to be funny, and not a commentary on anything about the song or band.