I tried playing this for a while, with my eyes closed and headphones. I couldn't ever really figure out what was going on. Played about 10 times and never got a score above 0. It is interesting and I think audio only games are cool. I rated 'Bug Free' as 3 stars as I honestly have no idea if it was functioning correctly or not. But it didn't crash and seemed to run fine.
Interesting but I think I probably just suck at it.