Unusual, stark esthetic. Very clever central mechanic. It took me a while to realize that I could even pick the red dot up. :)
I really enjoyed fighting the ghosts, dropping the red dot and picking it back up, but the game crashed for me at a certain point. I started over, and again it crashed at the same location. It's difficult to say exactly where it happened because there are no landmarks. I would say the 4th screen?