The freeze glitch is a glitch unique to the Ice Climbers in the NTSC versions of Melee discovered by Philly Billy. It is caused by performing a grab with the trailing Ice Climber and then quickly using Squall Hammer with the leader. If done correctly, the opponent will be frozen in place and unable to do anything aside from take damage; the only way to free the opponent is by grabbing them or by throwing a Screw Attack at them. This glitch is banned in tournament play, due to it essentially removing all control from the opponent, as well as guaranteeing victory if the player performs it with a stock lead or tie (as the player could then let the time run out with the lead while the frozen opponent would be powerless to do anything).
Barrel Cannon glitch
This is a variation of the Freeze glitch that can be used to get a large number of combos. It can be done by the Ice Climbers on any stage with a flat surface. The user must have a Barrel Cannon and at least two opponents. First, the player must perform the freeze glitch on any opponent. When the opponent is frozen, the player must grab a Barrel Cannon and throw it at the opponent. The opponent should be stuck in it if performed correctly. Then, the player must perform the freeze glitch on the second opponent. Once the second opponent is frozen, the player should throw said opponent at the Barrel Cannon. The frozen opponent should be stuck in the Barrel Cannon and rack up a decent amount of damage.