Podoboos (sometimes called Lava Bubbles or Sparkies) are living fireballs that emerge from lava. They are commonly depicted as a large fireball with two black eyes or also as only a large fireball. Podoboos mainly appear in the Mario platformers but occasionally appear in several Mario sub-series, like the Mario Party series, the Mario Kart series, and the Paper Mario series. In most games, Podoboos are nearly invincible, only being able to be destroyed by using a Star , a Hammer Suit , Tanooki Suit , Penguin Suit, or an Ice Flower.
In Super Mario Bros Z, they made a cameo appearance in Episode 7. They appeared in the backround in the 8-Bit castle.