Thank you so much for such good feedback!
About the baby, there's a screen in the tutorial which explains what it can do. Maybe you missed it or it may not be well explained, we'll look at it for an update!
Also one of the house levels is indeed to hard, will definitelly be changed in the near future.
Answering the questions, there's currently no easter egg in the end scene, but I write it down as a good idea to implement at some point. And we are definitely going to keep working on this game after the jam, improving all the details mentioned in comments and probably adding more to the game. Again, thank you so much, it means a lot!