The Mushroom topping (or Fun-gal, as she prefers) is a Portobello Mushroom that somehow got humanized, she wears a very big Beret hat, as to resemble the mushroom, she also wears a hoodie of the same, light peach-like color as her beret, she wears long black leggings with built-in shoes, and also wears black gloves.
her personality is quite clumsy, goofy, but very attached to anyone who's caring with her, like a kid, she's mostly silent, but can be very affectionate, especially with Peppino.