Boom-Boom is the Bowser-like figure at the end of each Dungeon in Super Mario Bros. 3. To defeat Boom-Boom, you must jump on his head 3 times. When defeated, Boom-Boom would drop an orb, which let you go on to the next level. But Boom-Boom can defend himself by curling into a half-circle. When in this position spikes are on his back thus hurting Mario if touches the spikes on the Boom-Boom's back.
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