That was a super cool concept! It took me a second to understand what was going on, but once it clicked, oh man...
You had a lot of interesting challenges, and I found the fact that you could move diagonally, super cool. Sometimes it was kind of hard to imagine what keys I needed to press to go anywhere, and I died a bunch because I couldn't link it to where my character "was" on the number pad.
It's a super cool and well executed concept, nice job!
P.S.
I would have liked to have had a way to close out, cause having to hunt it in task manager wasn't too fun.