Very interesting idea.
As others mentioned, the controls and perspective could use some work. I would add to previous comments that, to me, the buttons used to move in the first level felt very counterintuitive. I expected up/down to move the character along its line of sight, and right/left to move it laterally. Somehow, it took a lot of focus to change that mindset.
Still, the visuals and atmosphere for both levels were quite enticing, and I would love to play a more polished version.