Rocket jumping

Rocket jumping is the using of the rocket launcher's splash damage to propel a player high and far, much more than he could jumping with his own means. Players using this technique often take a large amount of damage unless they are invulnerable, so this tactic is not often used outside speedrun games, where it can save a lot of time. One use for rocket jumping is reaching the secret exit in E3M6: Mt. Erebus.