The mazes themselves were designed very nicely, but I feel as if there was a bit too much randomness. I often found I could brute force levels by just getting good ghost movement, and was never really incentivized to use the blocks as intended.
Additionally, dragging the blocks made the ghosts move on every tick, so I was even less incentivized to do that as well. This might be fixed by adding a rule that checks for player movement?
I like how the ghosts seemed to chase you when they spot you, but would love an audio or visual cue of when they get into this "pursuit" state!
I think knowing the limitations PuzzleScript however, you probably did the best job you could have done in implementing your idea. And in the end I still had fun playing your game! Well done.