Brilliant concept, a bit of poor execution.
In a world where every single flash game relies on the power of sight, one game stands aside and says "look at me, I'm different." There were times in 'Invisible Runner' that I felt brilliant, using only my memory of speed and where my runner MIGHT be to complete a level. I really liked this game.
But, as with all great concepts, there is always room for improvement. There are quite a few bugs, whether it be because of the 'grip' of the character (sometimes I felt like I had made a jump, when two seconds later, I'd land on a pellet to find I was on the other side of the level.) I really like this game, and feel that it should deserve a 10, but the bugs present make that decision impossible. It is a great game nonetheless. Good job.