A Self-destruct is when a character gets Koed without being hit by an opponent in the Smash Bros. games. It is also known as a SD. Falls also are put as Self-destructs if the stage KOs are character. Self-destructs are are type of KO, along with KO, Star KO, Screen KO, and Fall. Like KOs, Self-destructs subtract one point from the player's score. Killing a teammate is a Self-destruct not a KO. However, the only way to KO a teammate is if you turned on Friendly Fire, or if you hit the teammate with a Bob-omb. In Super Smash Bros. and Super Smash Bros. Melee, a Fall counts as an SD if a character was standing and did not get hit by anything and fell, or if the character was hit with a stage hazard and fell. SDs in Super Smash Bros. Brawl only count if the character did not get by anything during the entire stock. Characters could walk off the edge, yet it does not count as an SD. It might be considered as a Fall. Even doing a Footstool Jump and without dealing damage would not count as an SD.