Dust Crusher

Dust Crusher (ダストクラッシャー), called Dust Crasher in Mega Man: The Power Battle, is Dust Man's special weapon. It sends a ball of debris that can also split into four pieces (diagonally) when it hits something solid.

Capacity
In Mega Man 4 and Mega Man III, one shot uses 1 weapon energy unit. With a full weapon energy gauge, Mega Man can use Dust Crusher 28 times in Mega Man 4 and 19 times in Mega Man III.

Bosses weak against Dust Crusher

 * Mega Man 4: Skull Man, Square Machine and Cossack Catcher
 * Mega Man III: Skull Man, Dive Man
 * Mega Man: The Power Battle: Magnet Man, Wily Machine

Other media
Mega Man uses Dust Crusher in episode 5 of the Mega Man animated series.

Trivia

 * Dust Crusher's color scheme is identical to that of the Wind Storm, as well as the Bubble Lead.