F1 unlimited physical (unlimited number of attacks and infinite time running)
F2 unlimited blood (HP maintain full value)
F3 unlimited endurance
F4 quickly plunder
F5 unlimited bullets without reloading +
F6 unlimited props
F7 unlimited silencer
F8 unlimited time radar
F9 to save the coordinates (record current position)
F10 Teleport (the character teleport to the save location)
F11 Undo Teleport (the character teleport back to the previous position)