This was pretty fun! As @agget said below I definitely would be helpful to have a pop up or something to explain the controls a little better.
One thing that I would like to see is for the art to be a bit brighter especially the walls. At first I couldn't figure why the monsters weren't able to get to me until I realized that it was a wall in there way.
The character controller feels really nice though! It was nice and snappy and felt very responsive to input!
Keep up the good work!