Read the original on Steam ↗Changelog:
-The bells in the final battle no longer disappear when you strike them and they go below the floor
-Added a hint about red targets in one of the late-game segments
-Fixed some NPCs disappearing at the wrong time
-Fixed some NPCs appearing in the wrong places
-Checkpoint at the start of the town in the third stage is now a few screens earlier
-Other minor fixes!
By the way, "Holy Grail for DUMMIES"'s OST is available on YouTube!
https://www.youtube.com/watch?v=yhEOQpUESlU