NieR: Automata Side Quests - Emil's Determination

The last quest for Emil's sidequest line. Walkthrough: 1) Complete Emil's Memories sidequest. 2) Find all Weapons and upgrade them to maximum level (excluding Pods and Pod Programs). 3) Go to Emil's House, get Emil Mask, then talk to Emil at his shop. 4) Go back to Emil's House, Defeat Emil (Boss), and picked up Emil Heads. 5) Head to the Desert Zone: Center and defeat Emil Clones. ***************************** NOTES: 1) Ending Y - In order to get this ending, before going to Emil Clones, save first at Desert Zone: Center. Fight the clones and let it self-destruct. VERY IMPORTANT: If you already finished the quest without getting this ending, you have restart again from the very beginning of the game. 2) Chapter Select seems to reset your progress to go to Emil's House(but not the quest progress for Ending Y)