I actually had something like this planned for a nightcore version of the song before it was taken down. Now it's here.

Ariel: So you don't want to date me?
Anthony: Starts laughing Oh my- That is- You think that I- With you? Oh my- that is too good! I mean it's sad for you, but... (sigh) ...Let me put this a way you idiots will understand. Music starts up

I'm not the damsel in distress.
I'm not your best friend or the helpless villager.
I'm not a little bird who needs your help to fly.
Nope... I'm the bad guy.

All these former villains that you see,
Each of them, with shaking knees, has knelt before me.
So I'm not your ally or your partner in crime.
What am I, boys?
Captured Villains: He's the bad guy.

Anthony: (That's right) Oh, it's magic
To watch a kingdom
Shrivel up and die.
Oh, it's thrillin'
To be a villain.
I destroy their homes and then I watch them cry.

he laughs and goes into his faceless form 'Cause I'm the bad guy!

Ryoma: Holy Crap. Anankos doesn't want to conquer the kingdoms, HE WANTS TO DESTROY THEM! Man that's evil...
Xander screams and takes out several vallites before being ganged up on
Anthony: Oh, ain't it fantastic?
I see something, I kill it!
And let me tell you why.
He reverts back I've always had a weakness
For barrenness and bleakness.
I crush all your hopes and then I watch you cry.

See, I find this route rather fun!
I don't want your assistance or your admiration!
We'll  vaporize your kingdoms and bid ya bye-bye!
Why?
Come on, GUESS!!
Ariel and Ken: 'Cause you're the bad guy?
Anthony: Or, well, boy. Even more maniacal laughter from him