Well, I think you did a good job with the difficulty scaling, there might have been 1 level that was more easy than it should have been but for the most part it felt very smooth. And cool to see that in the end I did make it to the end :)
And a big WOW to the CTRL part because it looks so obvious that this is the main goal and the initial plan all along that you assume it is a big part of the story but in the end it was a last minute idea :)
Keep up being PUNtastic ;)