Just found a great solution! I'm using the cellphone gyroscope as a mouse. Just downloaded the software to simulate it in
www.monect.com and enabled the mouse 3d option.
After that I just configured the game to automatically enable the view with the mouse pointer and its sensibility, a button in the wheel to centralize the first view and found a way to fix the phone in my head. Particularly I tried a bicycle helmet and the VR One Plus structure and both worked pretty well (the last one was more physically stable).
Moreover just have a button in place also for the back view. This pretty much solved all my issues. No need for any fancy 3d glasses.