I guess I had that second bug too. If you pause while he talks to you, the dialog stops, the dagger returns to its original state (no blood and vertical), however you can't talk to that guy again. You are stuck with no key to open the chest, and you are forced to reload your save.
Other than that, the game looks great, with stellar art. I'd just say this demo lacks some sound effects (nothing when you save at the statue or dig out of the ground, when you jump, etc.) but they might just come later :)
Also the arrows covering "Map", "Items", etc. in the menu is quite unsettling ^^
I'll be following this one for sure, I hope the finish line finally draws near for you :)