Shotgun Ice

Shotgun Ice (ショットガンアイス Shottogan Aisu?) is the Special Weapon that X obtains from defeating Chill Penguin in Mega Man X and Mega Man Xtreme. In its normal state, X fires a shard of ice that can freeze and/or damage a target. Upon collision, smaller shards will be fanned out in the opposite direction. When charged, a sled composed of ice is created that X can stand upon and ride for a short period of time. In Mega Man X, the sled merely travels along the ground until it hits a wall and shatters on impact. In Mega Man Xtreme, however, this sled will ricochet off of a wall for a few times before disappearing.
In Mega Man X, Spark Mandrill, Bospider, and Velguarder are especially weak to Shotgun Ice. In Mega Man Xtreme, aside from the former two bosses, Zain is also weak to this weapon as well. In Spark Mandrill's case, in Mega Man X and its remake, Mega Man Maverick Hunter X, it is possible for the player to trap this boss in a loop by repeatedly firing Shotgun Ice at Mandrill the moment after he breaks free from the ice. The timing varies between the two games - such as Mandrill breaking free much faster in Maverick Hunter X - but with proper timing, it is possible for X to defeat this boss with Shotgun Ice without taking damage or even moving.