Yeah, the game is definitly broken as of now since the plot of the game ended up as a self-fulfilling prophecy. Currently if you fall on your head it can softlock the game (I ran out of time and couldn't find a way to quickly fix this problem). There are only three bosses in the game, so if you beat the box boss you basically beat the game so far. I was planning on making the whole "who are you" question the methood for selecting difficulty, but wasn't able to implement it, so the difficulty is basically stuck on hard.
I'm glad you liked the game despite how buggy it was!