At the ''New Game'' option, press U,D,U,D,L,R,R,Y,X,X and bingo! You'll be able to access all the levels. Including the homage to Bruce Willis.
If you are having trouble with beating Pinnacle on level 13, then press Y and keep on diving in front of him. He will Punch and will soon do the 3 or 4 punch combo and get tired. Go behind him and press B and then press A and B rapidly. Do this over and over until he dies.
Use the manual aiming to shoot things. When you are on manual, you can aim at the bottle. You will need to do this three or four times. When the bottle is shot off Fahook, you need to make Fahook go near the open back part of the airplane. Once there, shoot him and Fahook will fall off and die.