Interesting concept with nice visuals. The game is also quite easy to understand.
But I feel like it's too hard to control which face is going to face up with only one axis of movement. And, the face detection feels kinda weird. Sometimes I felt like the face that was facing up was "6" and it detected something else.
Also, the physics are kind of buggy sometimes. For instance, after getting quite far away from the void, I got completely stuck under a table when landing after a big jump.
This made me lose and felt really bad.
Even though there were some issues with the game, I quite enjoyed it. Great work!