Armos
Armos Statues, also called Armos, are stone statues which will animate and attack viciously when touched.
The Armos has been around since The Legend of Zelda, and has since appeared in various other games in the Legend of Zelda series, such as A Link to the Past, Ocarina of Time, Majora's Mask and The Wind Waker.
The methods of killing one vary from game to game: in LoZ, the best way was to just slash it with your sword. In ALttP, they were most vulnerable to arrows. In OoT as Young Link, and in MM, you could either bomb them or throw a Deku Nut, then slash with your sword. As Adult Link in OoT, you could just cut it. In TWW, you had to cut the red orb on its back, which was made a lot easier by stunning it with an arrow. Note that in all 3D Zelda's, after killing one, they'd charge at you, and in the N64 Zelda's, they'd blow up after their charge.
The Armos in Twilight Princess wield hammers and look very different those in from previous incarnations. They have a more tribal look, partly resembling the Moai statues on Easter Island. When animated, their facial features are clearly outlined by a glowing blue color. As in The Wind Waker, they are defeated by striking the weak spot on its rear. They are easiest to kill using the Mortal Draw skill, or by striking them with the Ball and Chain before they fully animate.