I saw this game for the first time at GDC2010 and was intrigued. The concept is unique and innovative. Emitting sound waves in able to see your surroundings is an awesome idea. Very Trippy :)

This game is exactly like the "devil's tuning fork" depicted on the box art: It defies any understanding of reality and can only exist as a concept on paper.

This game is great, cause it takes away something you need normally and gives you something you're not used to instead. I think you're not seeing everything You're hearing it (just like a bat)