The suicide exit is a speedrunning technique in which the player deliberately kills off their character to exit a level. When killed by a weapon or by blast damage, an actor acquires momentum. Due to the counterintuitive motion exhibited by corpses in vanilla Doom, corpses can trigger walkover linedef types such as teleporters, crushers, and "trapdoor" exits. When the player is killed, their height is immediately reduced to the point that they are capable of sliding under walls or through windows that are normally impossible to circumvent that are at least 14 units in sector height. By combining these attributes, a speedrunner can perform a shortcut by killing themselves, via doing so with the rocket launcher while running backwards, or by allowing enemies to kill them while moving, result