Rocket-jumping (RJ) is the only tricking technique using a weapon that can commonly be observed in "Q3A" professional deathmatch competition—in spite of the resulting cost in health with self-inflicting splash damage enabled in this game mode. Depending on the size and topography of the map and proper synchronisation, two or larger number of rockets can be timed to impact on the very same spot a fraction of a second or n-th after the player arrives there. Thus the player can capitalize on the added momentum furnished by the detonation of multiple projectiles, accelerate substantially and travel long distances airborne. When playing in "DeFRaG"'s multiplayer mode, projectiles fired by other players can be used as well.