Very cool concept, cool art, nice design overall.
I was a bit confused at first. It took me longer than it maybe should have to realize that my F key was also an attack. That was pretty fundamental to moving along, so I was glad when I realized it.
I didn't use the cheats at all.
The boss fight bugged out for me. I died and was returning up to fight again, and accidentally hit the boss through the wall, then the boss stopped moving and took no hits.
Overall, fun game!