Great fun, later levels are pretty tricky, and figuring out that last one is a massive pain in the ass. I did manage it with 2 spare blocks in the end which probably didn't help :D
Not sure if it's a bug or a design feature, but when I encounter a "Strong" version of a monster the stats in the bottom left don't change, for instance a Strong Vulture shows the stats of a standard vulture (currently 84 killed) which throws you off when you see yourself doing 187% of it's health to it and it still not being dead.
Hah! I agree with the guy that points out the major error in Kred / Banknote conversion.
Just looked at the first rod that's notes only. It would cost over $400 for something that would last only a few minutes.
I can think of something else that's similar, and they both leave me the same feeling.
Glad you had fun! :D Making the last one was a bit of a pain in the ass too!