This is the 1991 Kingsoft re-release of the Mastertronic pool billiards game, published 4 years after the original release. Obviously, both strips on top and bottom of the title screen previously showing the info about the developing team and the copyright were removed, as well as the authors' info on the right.
Moreover, the entire picture of the title screen was shifted towards the right! Consequently, in order not to make the arm look a bit "cut off" on the left edge, the arm was "prolongated" again to fill in the newly emerging gap ...