Ninjask are small Pokémon that bear great resemblance to a cicada. Ninjask's body is mostly yellow with accentations of black and gray. There is a solid band of black coloration between their gleaming red eyes. The band pools into a circular pattern on their forehead between the pointed crests on the sides of their heads. The underside of Ninjask's head is grey and segmented, perhaps designed to look like a veil, and most of its carapace is black. Gray-colored, insectoid arms extend from Ninjask's chest, usually with their small, yellow claws turned inward. There is a similar back pair of legs, however these are usually held close to the body in flight and thus inconspicuous. On their back is a notable patch of black coloration with a stretch of yellow, shaped like an upside-down letter Y, voided into it. Most of Ninjask's abdomen is black, but near the tip there is a band of yellow. Ninjask has large, veined wings with triangular red tipping.