Interesting interpretation and cool idea to do a stealth gameplay, the voice acting also adds some narrative and works for a tutorial. Sadly I got a pretty annoying bug where my camera wont stop moving to the right on the browser, and the worst problem is, what we often underestimate, coming back to the beggining where we must WAIT for all the tutorial to end before being able to enjoy the game again just kills too much of the fun :(
I still find the tutorial and mechanics well made with some challenge!