Ice Burst

Ice Burst (アイスバースト) is X's weapon from defeating Blizzard Wolfang in Mega Man X6 and is Rainy Turtloid's weakness. In normal fire mode, it sends out an ice block. If it hits the ground without hitting anything else, X can use it as a stepping stone. Charged up, X starts to glow, and when he dashes, he makes ice spikes shoot up in the wake behind him. 

Trivia
Interestingly, Ice Burst is one of the rare occurances in which X will run out the weapon's energy before the boss is defeated. Should he attack Turtloid with it until it runs out, Turtloid will be severely weakened but still alive.

Similar Weapons

 * Concrete Shot from Mega Man 9

Counterpart to this Weapon

 * Hyourouga