Lag

Lag is a term in the Super Smash Flash series that indicates a period of time when a character is performing an attack animation, but the move is not active. During this time, the player is unable to perform in any other action, with the exception of moving through the air when concerning aerial moves. The two main categories of lag that every move in the game has are startup lag and ending lag. For aerials and certain special moves when used in the air, there's an additional form of ending lag that can occur called landing lag. The more lag a move has, the easier it is to evade the attack and punish the user. Typically, powerful moves have more startup and/or endlag, though this is not always the case.