The description sounded interesting to me, though I wasn't quite sure what I was supposed to press or not press, at first (other than Space to start). I think I figured it out though.
I like the use of sound effects--I always like to see good choice of sound effects in game; they can really add to the experience, and I think we've all had experiences in trying to filter out buzzing phones or someone's endless chatter.
Interesting idea! I think this could certainly be developed into something further.