I finished the free demo last week, took a break, and now I'm gonna start Chapter 3 after buying the game. I'm planning on getting the egg and doing the hidden boss fight/sword route, I didn't do snowgrave if that effects anything.
Is there anything I should be careful about? Things that could lock me out of paths or whatnot? Because I heard CH3 has some fuckery that can cause you get locked out of finding secrets.