Nice work! You even managed to get a bestiary in there. My only comments:
- Sometimes you couldn't see the enemy health bar because it appeared behind the exclamation point balloon.
- It wasn't always obvious to me when I had completed the transition from/to void mode. Some stronger visual or audio feedback might have helped me.
- I would have liked to be able to see your health and sanity bar from the inventory screen, so I can see the effects of consuming health/sanity recharge items.