Wart, also known as King Wart, is a fictional character from Nintendo. He is an anthropomorphic frog king who is the main antagonist and last boss of Nintendo's NES game, Yume Kojo: Doki Doki Panic, which, for Western audiences, was transformed into Super Mario Bros. 2. In Japan, the character is known to his Japanese name as Mamu (マム, Mamū).
Wart is the leader of his militaristic dictatorship, known as the 8 bits or the 8 bit Club. He is a past evil archnemesis of Mario, Luigi, Toad, and Princess Toadstool.
According to the instruction manual of Super Mario All-Stars, his plan involves to enslaving and imprisoning the inhabitants of "Subcon", the world featured in Super Mario Bros. 2. He also creates his own monsters with the Dream Machine. The inhabitants of Subcon call Mario for help, spurring the events that occur in Super Mario Bros. 2.
Wart was the creation of Nintendo designer and producer Shigeru Miyamoto. He was decided to be an evil main villain. Miyamoto had created Wart as a over-sized frog with claws and fangs, with a white belly.
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