I love the interpretation of the theme, replacing body parts to become more mechanical is very cool, and gives the vibe that you are becoming more similar to the enemies over time. Cool level generation and enemy design, my only gripe is that the combat feels a little too slow for me (you want the weapons to feel weighty but when it's too slow they can feel floaty instead). Maybe experiment with animation curves in the future to give more oomph to those sword swings. Great job!