Replying...
Intro. His horns resemble those of a goat. He used to alternate between lowercase and uppercase every letter, which (like many things) annoyed Karkat Vantas. After sobering up, his lines alternate between all caps and all lowercase. Gamzee's blood and text colors are the least consistent out of any of the characters in the comic, which may be an intentional tie-in to his theme of capriciousness. Gamzee's obsession with "MiRaClEs" is a reference to the Insane Clown Posse song of the same name.

Gamzee Makara

@Astral