Thanks for taking the time to play my game and also for the constructive feedback. The fight with Lady Lamia is the end of the dungeon and also the end of the game.
I agree that a prologue would help a lot with fleshing out the 2 main characters, and I might touch on that in a future installment.
Also, I actually planned on creating a tutorial image for this page that explained the controls and totally forgot to make it once I started focusing my attention on creating the game, so that's something I can definitely add in the future.