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Hammer Mario is a form of Mario or Luigi only seen in Super Mario Bros. 3 and its remakes, gained when he wears a Hammer Suit. In this form, he resembles Hammer Bros and, like them, is able to throw an infinite supply of hammers in a short upward arc (which can be lengthened by pressing forward on the ), which can defeat most enemies and bosses, even Bowser; as such, Hammer Mario can be considered as a stronger version of Fire Mario, since the hammers can defeat most enemies that cannot be defeated with fireballs, such as, Buzzy Beetles, Boos, Dry Bones, Stretches, Podoboos, and Thwomps. He can also block enemies' fireballs by crouching. While the suit appears to thoroughly protect Mario or Luigi, it does not defend against the simplest of attacks and will be lost in one hit. Hammer Mario also cannot Slope Slide.
Super Mario Advance 4 adds a new utility to this form: its hammers can break Gray Brick Blocks.
This form is not to be confused with Mario or Luigi wielding a hammer, with the difference being the infinite disposable supply of hammers and the black shell armor.
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