Top, Middle, Bottom, Double-Right;
Up Left, Middle, Double-Right;
Top, Middle, Bottom, Up Left, Down Right;
Top, Middle, Bottom, Up Left, Double-Right;
What would fit next?
Fire (3 rockets from fully loaded rocket launcher) !
That pattern looks exactly like a player playing Unreal Tournament 3. More exactly, it's circling a target while dodging damage. Except the rest of the standard movements, the double one is the double jump which can be used to evade damage. During the time the maneuvers are performed, the player loads its rocket launcher so it can shoot 3 rockets at the target (or the goo gun/Bio-Rifle, same thing, still requires time to fully load it's secondary mode).