Today was all about content creation! I've mainly created the 33 spells you'll be able to use and more or less defined their effects. Balance is out of the question yet because that's related to how enemies will be created and I'm not done with them at all. Tomorrow will probably be more about enemy creation and balance. The core level-up path is kinda done too, but I'll probably keep it simple - have only a few bonuses that loop every Xth level or so.
Hope I manage to create an interesting menagerie of monsters, then balance the game so it's fun to try time and time again to throw darts against all odds and conquer as many levels as possible! We'll know tomorrow, on the final (for me) day of Nes Box Art Jam! :D
Time spend on the project so far: 28 hours