It’s fun to play :) It took me a moment to figure out that by twisting the Cube, you can put an open square next to other spots, to check whether there’s a bomb there or not. This makes the game very different from normal Minesweeper and makes interesting use of the WOWCube’s properties, so compliments for that! :)
I don't have any major complaints, but some minor points of feedback: Firstly, Add some SFX! A simple bomb exploding sound would make a game over feel much more 'explosive' xD Secondly, I’m missing some way to restart the game after a game over (twist/double tap to restart). Thirdly, I see that to open a square, you tap the Cube once. However, when I played the game on my actual WOWCube, I found I was constantly accidentally opening squares, as a single tap is often registered by just handling the cube in normal use, making the game unplayable. It’s better to check for a double tap or even a triple tap, to be safe. However this is easy to fix of course! :) Great job all around!