The first actually 3D game.. (look it up) first to introduce 6DOF: 6 Degrees of Freedom. This means you can move in any physical way imaginable at the same time. Built on the skill of tricoording which means to move in 3 directions at once. Lets go over those 6 degrees, first the looking ones.
1)Pitch(Look Up/Down)
2)Yaw(Look Left/Right)
3)Bank(Roll Left/Right)
You may always look while tricoording so all 3 of those can be combinded in unison with the movement controlls.
4)Throttle(Move Forward/Backward)
5)Strafe Vertically (Strafe Up/Down)
6)Strafe Horizontally (Strafe Left/Right)
So the skill deems on moving Forward/Up/and Left at the same time to dodge something while looking down and banking at your target... Too much fun :P