I hate to agree with caylor, but......
looks like caylor is right. I played this game 4 times all I ever got was a leg hit, even if I was right under the divers neck I'd get a hit and I'd see "leg +15" WTF?!?!?!? Also why is it that after you get a full charge of the tail it automacialy fires? that is just plain shit, also you should be able to get a hit even when the tail is not fully charged. Go back to the drawing board with this game and do it right the next time around.