You can actually get this trophy if you have another person join your game if you’re having trouble doing it solo. What I did was I took care of everything on the left side, and my friend got everything on the right side. Now the only thing we noticed was whoever pressed the button will get the trophy. So if you press it the first time and complete it you’ll get the trophy. You’ll have to have your friend press the button and complete it a second time so that way they can get the trophy when you both complete it again.