Well, we only have one thing to do!
*gets one of those big "lamps" to project the Isaac and Fiel signs on the sky*
Now, I want to hear what kind of badass music they made for this boss!
EDIT:
Just went to insoya... Wow, just WOW! I LOVE THAT CHANNEL SCREEN!!! *Quickly removes foam from mouth* No, I'm not crazy, mad, or whatever you want to call it
= one of it's attacks 
*gets one of those big "lamps" to project the Isaac and Fiel signs on the sky*
Now, I want to hear what kind of badass music they made for this boss!
EDIT:
Just went to insoya... Wow, just WOW! I LOVE THAT CHANNEL SCREEN!!! *Quickly removes foam from mouth* No, I'm not crazy, mad, or whatever you want to call it
= one of it's attacks