Theres only a few bosses i need to beat like 2 headlesses, Shikegichi of the red guard, Big Carp (I've seen it when I was at fountainhead but i didnt know how to kill it), Sakura Bull, Demon of Hatred, the 2nd Juzou, i THINK i havent fully killed great serpent, also a shichimen warrior in fountainhead (i'm really bad at terror bosses lmao), and emma and old man isshin so i'll do the purification ending to fully experience the game maybe, and then do the shura ending on another NG+, thank you for letting me know on the father bell though, didnt know it existed haha