I have just played it.

1. Thank you for having used layout-independent keys! :) (I have an AZERTY.)
2. Cute graphics, especially the knight.
3. The 3D rotating cube effect is awesome! I tend to be fond of interplays between perspectives, so I could only like your 2D knight evolving on a 3D cube. :)
4. I identified that the holes made the faces of a die only after my first defeat, looking once more at your screen capture with a 5… I was slow, there. X)
5. And it took me some dozens seconds to figure out the holes were actually destroying the enemies!
6. It is a bit hard to avoid enemies that spawn at an exit you are then taking it.
   I would suggest choosing other spawning points, so that there is no conflict.

Original game, I like the concept and its style! I just felt some other mechanics would have made it more pleasant (at the time being, it looks like all you have to do is run to some side of the giant die and lure the enemies into holes while avoiding them).

A sweet entry. :)

The game clearly has some issues and lacks polish, but the animations are neat and the way the camera moves between rooms is great.