I beat Rain-Slick Precipice of Darkness last night. I got better at dodging but it still seemed fairly arbitrary to me; there's a particular final boss attack that just seems undodgeable. It took me two tries to complete the final battle.
The plot bothered me a bit. What if I didn't want to deal with the mime threat? Had everybody forgotten about the giant robot?
But, I had enough fun that I'm likely to buy the next two episodes.