I didn't realize until coming to leave my comment and seeing another comment that there was a double jump in the game! My main suggestion was going to be for it to be possible to jump to the other gondolas when they're above you, so... instead my suggestion changes to telling the player more clearly that they've got a double jump, haha. I really love what you did with the jam prompt on this. I also really loved the screen transition to back to the main menu, very nice.