What you want to ask is what if the second menu of Zombie Destruction Project is missing? Check the game settings and restart the game.

1. Check the game settings: enter the game options or settings menu to see if there is an option to hide the secondary menu. Make sure this option is set correctly.

2. Restart the game: Sometimes the interface display problem in the game may be temporary. Quit the game and restart to see if you can return to the normal secondary menu.