Great job! Got the true ending after a whole lotta working for it. (Even brought out a pen and paper to map out everything + where every essential item could be found)

Love the optional cleavage option at the start and the multiple endings that you can instantly return to once obtained.

My only critique is that it kinda became a slog at the end, scouring each and every room for all the batteries. Getting the 1st ending was easier since you didn't need all of them and there was more than the needed amount, but it became a bit tiring searching for that last one.