Thanks for the feedback!
1. The GDD is a google doc link. I couldn't find an option on the itch.io upload page to put in on the page that doesn't show up as a "downloadable" even though it's not a download. I'll put a link to the GDD in the description as well for people who are hesitant about clicking the "not a downloadable" download button.
2. I'm still working on the full screen issue. For some reason, the code I used for my first game isn't working the way it's supposed to on this game so this is still something I'm trying to fix. Should be able to get this one fixed today I think.
3.Haven't gotten into the HUD yet. I'm super noob still so I spent a lot of time just getting the movements and attacks for the player and enemies. The cursor should show you where your spell is going to go but I get it, once they go into the dark you have no idea where they're going to hit. I'm still experimenting with the spells lighting up the dark slightly so you can see them as they travel so you can have a better idea of where they're going to hit.