To go off the ground, enable the set sv_gravity code with a negative value. To get back down, enable the set sv_gravity code with a positive number. To remain where you currently are (leveled), enable the set sv_gravity code 0 code. Note: Occasionally you must keep trying because you may get stuck, cannot move, or cannot escape from where you are. To ensure that you fly up, go to a cliff and go off it. Fly off the screen and it should wobble.