OpenArena uses id Tech 3 movement physics, the same base as Quake III Arena. Strafe jumping, rocket jumping, and plasma climbing are all available.
Strafe Jumping
Combine directional movement with mouse turns to accelerate beyond normal run speed. Hold a strafe key, turn the mouse in the same direction, and jump repeatedly. Speed accumulates each jump. Used to traverse maps faster than walking.
Rocket Jumping
Fire a Rocket Launcher at the ground while jumping to launch upward or forward. Self-damage is taken (up to 50 HP at close range). The Battle Suit powerup protects from splash self-damage.
Plasma Climbing
Fire the Plasma Gun at a wall while moving toward it to climb vertically. The Plasma Gun’s minor splash (radius 20, max 15 damage) provides upward momentum. Allows reaching areas that are otherwise inaccessible.
Flight
The Flight powerup grants free flight for 60 seconds. Strafe jumping provides no speed bonus during Flight. Jump pads are ignored.