Once you know how to get them, they’re very simple. Includes fighting tips for the final boss.
-There’s a shop at the end of a literal bread crumb trail where they sell Mork. This fills up your blue meter completely (I think it was called Action Points?) and they’re pretty cheap, so take a few. Same with the chocolate cakes.
-Baker is a purple/violet ghost, so I recommend filling up the corresponding flame as much as you can before fighting him, as it deals very high damage.
-If you’re going for the endings that require you to have maxed out stats, it should be much easier to fight him.
-If you aren’t going for the maxed out endings, I still recommend that you fill up your Willpower, Attack and Defense. He uses skills like you, mostly Pierce and Poison, so youll need a lot of health to combat that. (I think he might shatter your defense at some point, though Im not sure. Prepare for that anyways!)
Thanks to The_Golden_Kitsune for his great guide on how to get all endings and tips for fighting Baker, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.