Love this! Great job. I couldn't do the third puzzle, I don't know why but nothing I tried got to anything useable, so I had to guess it unfortunately. The rest was great though!
Oh also, I made a game years and years ago called Riddul (it's still up and running, but I haven't tested to see if it still works), and it's similar to what you made here. I based mine on NotPron, the original and best one!
