Hey, I was finally able to get it to boot tonight. Not sure what changed, but it's working well now. First off, visuals are great - I like the atmosphere you're going for. I think you pulled it off well with the art, backgrounds, etc.
I also very much enjoyed the gameplay. Admittedly, I wasn't able to complete the game yet. I only reached the second stage, but I'm going to give it another go in the morning. Only after I had a game over did I realize I was pressing the wrong key for slow down after wondering why it wasn't working (I hit the x key instead of shift). That being said, I had a good time with what I've played so far. The walls closing in were a nice touch to add to the intensity.
Great work with this. If the first couple stages are any indication, I bet the total package could be a full fledged game.