I so wish this game had some way of saving progress!!! I have an extremely low threshold for motion sickness (playing Portal required for me to spend about a week getting used to it, and still I never managed to play for more than 15-20 minutes at a time). So I couldn't play your game for too long, but the couple of levels i managed to play I really loved!! As others mentioned, handling the cubes could be improved, but otherwise, it looks like a very well done game. Liked the visuals, mood and sound a lot, and it has really interesting mechanics. Very good job!!