Gengar is a ghostly Pokémon with a spherical body and a mischievous expression. It has dark purple skin with a slightly smoky texture, giving it an eerie, shadow-like appearance. Its eyes are an intense red, almost glowing, which contrasts strikingly against its dark body. Its smile is wide and menacing, showing off sharp teeth. Gengar's body shape is rounded with short arms and legs, and it has large, pointed ears on top of its head. Its ghostly nature is enhanced by a faint, ethereal glow and shadows swirling around it, making it look as if it could fade into the darkness at any moment. This visual creates a sense of mystery and mischief.