Great concept. I really like the pixel art shader that you've added. Compressing scraps puts you at risk of an attack, which is a pretty natural yet cool mechanic.
I think the problem with a first person action game is that sound effect is very important in letting the player know what's happening in the surroundings. Right now, it's difficult to know if an enemy has spawned. Still, it's understandable that there is not enough time for it.
Great job on the game!