Up smash

An up smash, also known as a u-smash, is a ground attack in Super Smash Flash 2 that is performed by pressing up and then the attack input immediately afterward or simultaneously. It can also be performed by pressing up with the "C-Stick" controls while grounded.

Up smashes are generally strong outward strikes that attack directly above the character or in an arc over them. Like with other smash attacks, they can be charged by holding the attack input to increase the damage and knockback they deal. Most up smashes deal upward knockback and are most often used in juggling or as vertical KO moves. Up smashes can also be used immediately out of shield or for dash canceling.

Attempting to up smash while holding a throwing item throws it a large distance upward.