1，use the up and down arrow keys to move forward and backward. Use the left and right arrow to point at different view. use space to shoot. Press 7 8 9 and 0 to change weapon or gun. 2，use the E and D to move forward and backward. Use the S and F to point at different view. use Q to shoot. Press 1 2 3 and 4 to change weapon or gun.
