Very cool work here! Love the graphics, and the enemy design is phenomenal, really professional stuff there! (Sawblade guys are especially unique and cool) Love the overall vibes and dingy bloody aesthetic. I like the fast paced vibes, though I think a speed between the walk and sprint would be optimal.
The main complaint I' have is that the enemy AI needs a bit of work. They get caught on decorations pretty often. This actually lead to me almost dying a couple times to enemies that had gotten stuck in dark corners of the room lol
I'd say the second level is better than the first, mainly because I feel there's a lot more visual clarity in the design. There's a few places where I feel it isn't clear what a button has done. Some visual cues connecting the button to its respective door would help a lot, or simply placing the buttons closer to the doors.
A quick weapon switch for the mousewheel would be greatly appreciated, being able to switch on the fly to kill multiple enemies with different weapons would feel great!
Overall, really great work! I look forward to seeing your work in the future!