PDs with keys: PD3; PD15; PD23 (mirror mode); PD46; PD54; PD55.
PDs with joysticks: PD2; PD33; PD43; PD51; PD54; PD62; PD64; PD77.
PDs with special items: PD23; PD62; PD97.
PD2- don’t have the key
PD3- done

PD15- don’t have the key
PD23
PD23MM- don’t know how to get into the mirror mode
PD33- don’t have the key
PD43
PD51
PD54
PD55- done

PD62- don’t have the key
PD64- don’t have the key
PD77- haven’t been this far
PD97- haven’t been this far
So the Q is: Which one should I target?
PD23, PD43, PD51 or PD54
Could U more experienced players please rank these 4 PDs?
Or maybe I should just continue to play the easy levels. My record is level 73.