Pros :
- Good idea with simple game play
-Easy to understand controls
-Good idea for a story oriented game
-Cute art style (reminds me of binding of Issac)
-(Personally I'm a sucker for that shaddow ray cast effect, looks cool)
Cons:
-Missing polish
-"Could use a bit of garnish", missing some textures like, Main Menu art, The character is just a red capsule, sprites missing transparency, etcetera, (unless it's an art style :P)
-The font in the book (in the second room) is quite hard to read which is an essential part of game play and not being able to read it means you cant progress with further game play
-Basic Settings, there isn't a volume slider so I'm unable to turn the music or SFX down. If the death noise is supposed to be loud to jump scare the player then some people might want to turn the sound down to just play the game.
Conclusion:
The direction of what you wanted the game to be is clear and with a little more polish and game testing you would have a real solid game jam game goin'. Perhaps add a few fixes and touch ups after the jam is finished :)
Don't be displeased if you feel you game is un-finished, a game jam is quite the challenge. Keep it up :D