Wow! Thank you for taking the time to play, rate, and leave all this feedback!
I totally agree with you on the idea of introducing the new pull and throw mechanic in the last (12th) level. We were planning on having 3 more levels, but ran out of time. I'd say I'm still happy with 12 levels for a game jam, but if we knew it was going to be 12, then we would have (and should have) planned to introduce the pull and throw earlier, I totally agree with you on that. As for the level before that introduces enemies but not the pull and throw, we wanted to ease the player in a little bit. We thought that introducing both the pull and throw and the enemies in the same level might be too much. But we will consider in in our fixes to the game, thanks for that feedback.
Thank you for pointing out this bug of only activating the "buttons" if you click on the bottom portion. I want to help clarify what you mean, when you say buttons do you mean the small blue circles that allow you to swing? Internally we call those swing points, but I think buttons is a good name too. We will look into this bug. Can you give me any other details? - are you running at a 60hz monitor, 120 hz, 144 hz, etc? Did you face any lag?
In the rest of the game, did you run into any other issues or bugs? Did you get stuck on any level? Did you have any concerns about controls or pacing? I appreciate you playing all the way to the end if you did encounter any hiccups. We appreciate any feedback you can give us as we try to polish the game after the jam.
I will be happy to play, rate, and give feedback on your game as well!