Monochrome from mario the music box by corpsesyndrome, he is a cat human hybrid, and he will kill anyone who manages to get into his world, he likes pets (not too much) , hes mute, he doesnt speal much and he's also a fanmade undertale and Mario character. "You do not know me and you will never know me. You do not belong in my world. I will get rid of you, even if it means destroying your very existance in this world."