Iggy Koopa is a member of the seven Koopalings in the Super Mario series. He has appeared in several games along with the other Koopalings as well as in the Adventures of Super Mario Bros. 3 and Super Mario World cartoon shows, in which he is known as Hop Koopa. In the early games and the TV shows, Iggy and the Koopalings are depicted as Bowser's children, but this concept was dropped following the introduction of Bowser Jr..
Iggy has tan-coloured skin with a cream-coloured belly, a green shell, and a green head with a cream muzzle. He wears thick-rimmed glasses and has cyan-blue eyes and sports a stalk of light green hair resembling the leaves of a pineapple. He is thinner than the other Koopalings and nearly twice as tall as Mario.
Iggy is immature, frivolous, and quite possibly insane. He is often known to cackle maniacally, even if there's nothing going on. His deranged laughter is often used to unsettle his opponents and make them less capable in a fight. Iggy is also easily excited and prone to bouts of hyperactivity, fooling around and annoying everyone in his vicinity.
Iggy, like the other Koopalings, can spit fireballs and protect himself from attacks using his shell. He also carries a magic wand that can fire blasts of magical energy at foes. Iggy is the fastest of all the Koopalings; his speed coupled with his hyperactive personality make him an unpredictable foe.