I did completed all bosses and that's not that hard
Once I learned that you don't need to jump over mushroom girl you can simply roll over under her, that was surprising.
But I won't tell you how easy that is. I really love when hard nsfw game gives you some common cheats
So there you go, this is my 100% save (some items are in the crate)
Place it in: My Computer>Documants> FutakenValley (My directory)
Save should appear in game
It is recommended to restart the game.😁