I like the idea but was a bit too repetitive. Also, I hoped after one month my Popo would be big, but instead I lost apparently because I failed my mission.
Also, maybe a bit easy to stay alive by switching between cave and town to have lots of bonuses from people.
Laso, for the theme, I find there is not "so much" lost of control. I was imagining that maybe when the popo will grow, he starts attacking everybody, or destroy the town and else. And in the actual state, it's more like sometimes he doesn't agree or he moves to another place, so nothing really "big".
Even with all these comments, good job for this work !