I had trouble running the linux build but compiling from source worked. Without feedback on the start button I thought the game froze, but I'm assuming that's just the game world loading/generating. Cool that you got random level generation in during a jam. I'm not great at the controls but like Rie said, it might be a skill issue. I probably would have had an easier time with a ranged weapon as it was difficult to know how close I needed to be to attack and also how far I needed to be to not get hurt. Oh, also, the health meter for me appeared off to the left vs what I see in your gameplay video.. not sure if that's my screen resolution or because I maximized the window after it launched.