Thanks for playing again and giving very nice feedback! I'm happy you liked the new fairy!
Sorry for the late response
-Smooth sailing until level 4, which only took awhile because I forgot that buttons of the same color don't act like not operators, but are either pressed or not.
From the feedback I received, I believe this is a mechanic worth exploring in more levels since it isn't as obvious as I thought
-I don't get level 5, it's a non challenge? Also, the sleeve fairy doesn't have a purpose? I could be any fairy. So all I do is go left, wake up fairy, get it off red, then move blue fairy across and just ping pong the sleeve fairy on the buttons. Maybe it's supposed to teach about the alternating state of the launchers? If I was playing casually, I wouldn't care all that much.
By testing, It is not a good level. It is supposed to teach about the launchpad, but does it in boring way. I'm trying a new version in the current build, it is as easy but hopefully it is more fun.
-Level 9 is a little more challenging, satisfying to reason out. Not sure how much I like the question marks on the boost pad though. It's well intentioned, but it feels a bit unwelcoming to have the dev tell me, "pay attention to this puzzle object especially!", using a method that isn't informed from the level/visual design(like you adding those square visual flairs that hint where to stand to use a Toad tongue). I would personally prefer a change in the floor tile underneath, or maybe adding a natural animation to draw attention, like fire flies.
The indication of launchpads is a way to inform they behave differently since I don't want to give away how far away they take you. But so far I have rarely used the effect and you are right tiles on the floor do the same thing in a more fun way.
-Level 12 felt kind of odd, but it got the idea across.
Yeah, it needs more polish
-Advanced air control is the hardest level, a couple hours(while listening to a podcast) and still not finished. Felt particularly brutal since I kept getting off-by-one solutions and couldn't piece it together. Probably just a case of having horse blinders on, I'll likely get in a day or two.
I believe that part of the difficulty is on me for not warming up the players to the mechanic the level uses, it has nothing the player have seen yet.