Zheng indeed grasped the flaw Freddy possessed. It was the fact that this dream world was constructed with his consciousness as the foundation and the weaknesses of each player was drawn upon what he knew of them. Which meant a critical flaw existed. This was the chance to bring the whole team back to reality!
(The answer to A Nightmare on Elm Street is as simple as overcoming the gap in your heart. However, words are easier said than done. How could any person stay indifferent to those closest to you, dearest to you, and the things that you regret the most in life? How could anyone overcome them and move forward in life so easily?)
Zheng pondered on his next actions. He had planned most of what he needed to do. He even set up his scheme. Now, all he had to do was wait.