Wow what a cool idea! The gameplay itself is very enjoyable. Visuals can be dizzying at times, especially when moving. Overall, great game!

Nice idea with the 'lines of sight' of the guards. It's fun to sneak past the guards as the controls are very smooth. I did accidentally 'shoot' my sword a few times though which I put down to my left handedness. 
I didn't using the hiding much - you could improve the level design to make it more necessary. Also I wonder would it work better with a smaller scale so that you could see more of the map and hence the enemies - they tended to be off screen a lot.

I like the approach to both visuals and audio in this entry, but the floor texture was quite hard on the eyes when in-motion.

Gameplay was also enjoyable, though considering the simplicity of the game I'm not sure it warrants an entire tutorial section.

I got very dizzy from the graphics, especially the floors, which made it hard for me to play. Other than that, it seemed pretty cool. :)

Nice I got lost trying to get back but I found my way