Issues
First off, playing this game as intended is very awkward. You can only give commands to populations, like all miners or all doctors, when micromanaging individual Ballons would really help you achieve your goals. Meanwhile, we can't tell why each Balloon is unhappy and leaves the town. Combine that with the fact that some of the objectives are just ridiculously easy (e.g. make 20 females), and you get a game that is only marginally satisfying.
Then, of course, there are the bugs. All my Balloons disappeared at one point, and I could only tell what they were doing because new Baby Balloons appeared, and then I got a warning that one of them left town. And your counters are all messed up: you can only have 6 miners in a 7-miner capacity mine, and I lost one level for having a population of only 2, when I could clearly see three happy Balloons in my town.
Overall, a poorly executed game.