Hello, thank you for reporting your experience.
With recent changes the game was too hard - player has progressed through levels too quickly. Future versions will allow more nutrition for player to play with. Third boss was too hard as well. That combos with a cherry on top - being hunter by Advena and Unknown. Future versions should be easier and more prolonged.
By the way, which breed did you play with and what builds did you try to pull off instead of using Flaks?