I thought this was really cool. The concept of trying to erase memories while being careful not to dredge them up at the same time worked really well with Minesweeper mechanic. I also liked the (presumably mostly random) stories/patient files. That combined with the music really set a good tone for the game.
The only thing I would have changed is making the mind field resemble something more human, like a brain. Other than that, my favorite submission so far!