The Shark flip is one of Baywatch's supposedly advanced features. Basically when you make the shot to start it, the machine will control this little flipper on its own and make the across the playfield shot for you. If this sounds familiar, you'd be right, The Addams family did it 4 years earlier and had insanely cool self-adjusting software for the shot.
The Shark flip again expects the jaded operator to fiddle around with the fixed delay setting, trying to find a value that in most cases lands the ball where it's supposed to go. Naturally as the mechanism wears, playfield gets dirty and so forth, the shot timing changes and it needs readjusting. The operators loved it so much I never saw a working one on location, ever. Not even when this thing was new.
Here's adjusting and seeing the Shark flip work for your viewing pleasure. Now I bet you're thinking: "damn, that shot must be valuable!". It's not. It's mostly pointless and a player could probably do it better manually.