Hints for Act V, Scene 2: A Whole New Ball Game:

Hint 1

Look at the cue. And the balls. But not the cue balls. Everything should be in position.

Hint 2

This game doesn't look like it's being played on a table... A court, perhaps? Or maybe a field? Either way, the final answer is quite the accomplishment.

Hint 3

The pool balls correspond to sporting positions of five team ball sports. The cue corresponds to the direction of attack, where applicable. Index into the name of each position by the number on the pool ball. The five three-letter strings are ordered by position number in applicable sports, and, if not, by orientation on the photographs. Solve the unsportsmanlike clue to get the sporting final answer.