I'm not sure if I finished the game or not. Exiting the game made me feel I did something wrong. The music was really really good and the mystery in the killed souls reminds me of MGS3.
Good job!
This is the best comment by far, it perfectly describes what this game achieves. It's 20 minutes of a simple but entertaining game (to a great extent, due to its intense difficulty), but at the same time it manages to leave you something and get you thinking with just a few lines of text and graphics. Amazing.