Nice concept. I liked the spinning blade(?) powerup. In my first run I ran into the slime king boss in the second room and killed him, and then the game was over! I went back for a second run to see what backtracking would do. There's a fair amount of content for a week-long jam in terms of enemies and items, but as others have mentioned it would be nice to have a few sound effects or some music too. I played a few runs, thanks for the fun!