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Banette is a black, humanoid, doll-like bipedal Pokémon which is possessed with pure hatred. It has three spikes on its head and a long zigzag-shaped ribbon hanging down from its head. It has a zipper-like mouth. Its has long, three-fingered hands and short, stubby legs, and has a yellow brush-like tail, which can resemble a needle stuck into its body.
Being driven to life by a powerful grudge, it keeps its life force safely in its body by the means of its zipped up mouth; if unzipped, it would lose its energy. It lays curses on others by using its body as a voodoo doll and sticking pins into itself. It lives in garbage dumps and dark alleys, where it searches for the person that threw it away before it became a Pokémon.
When Mega Evolved as Mega Banette, this Pokémon gains four further zippers; one across its face, one on each hand and another on its body. The first zip comes from its left eye to the tip of its central spike. The other three are all unzipped, with ones on each hand revealing three long purple fingers and the third on its body revealing two pointed purple legs. Its zigzag-shaped ribbon becomes erect to appear like a longer spike which two rings in the style of zips, and a short zip on the tip of the spike. It gains two further spikes on each hand; one on the top and another on the bottom. It looses it's brush-like tail and becomes a darker shade of purple.