Wow this is really cool! Really difficult. I only made it to Stage 7 before I took a break. There is a lot of detail here and it's clear this has been a passion project. The first stage took me a really long time to beat. because I just didn't understand what to do. I don't think I ever got a great feeling for how much upwards force I was giving based on my cranking. The little bar that fills on the fan moves quite quickly making it pretty hard to balance. The different color/ weight balloons were a cool twist and had me yell out "ooh that's cheeky!" haha Awesome work. I'm glad you came back to this to start finishing it up.