The Toxic Ballguy is the Elite variant of the Ballguy. It spawns when an ordinary Ballguy touches a toxic cloud.
While moving around the Toxic Ballguy shoots venom projectiles (similar to the Scorpion's missiles) in a spiraling motion around it. It heals on contact with toxic gas. When the Toxic Ballguy dies, it releases a lot of toxic gas clouds that deal 3 damage each, and shoots tightly packed venom projectiles in an ordered ring around it, similar to when the Golden Scorpion dies. Unlike the regular Ballguy, it breaks walls near it's location of death.