Oh, and for the score, if you want to have a number: In the worst case (i.e. assuming you only get the first big crystal, which is nearly impossible to fail) you come out of the PD with something around 200k points; plus it has one orange and one yellow crystal that are fairly easy to get, one black (? or even more) and one orange one that are quite hard and two crystals that are impossible to get (okay, 0.2 is possible, I guess... but don't even think of trying

electriczax, did you do that one?)
So you can get out of it with 300-350k frequently and with a maximum of more than 500k points.