There are some carnival type games and entertainers are periodically out. My favorite thing about the boardwalk is the Flying Fish for dinner. There are also surreys that you can rent. I personally hate those things, as many people are reckless with them in the crowd of people.
The bw is immediately across the water from the Beach Club. After dinner on the bw, you can easily take the boat, or walk around the lake to Beaches and Cream for dessert.
If you are childless, you can go to the Dueling Pianos or the Atlantic Dance Hall. ESPN also shows a number of games in the sports bar/restaurant.