I was right:
On my next game, I got

# 11. I have now beaten the game and gotten a

in three consecutive games.
However, I also unblocked three more items:
My total is now 304.
I feel like I've taken the next step with this game: I used to struggle to beat it. What's next? PD 77, followed by my final two split-hearts to take me to 306. Then: nightmare mode.