This is fun! I really like the base mechanic and the game played very nicely. However, I think a harsher punishment is needed for being in contact with the ghosts. I was able to just stand in one spot with the mouse pressed down and gain time pretty rapidly after a few minutes went past, since so many ghosts were surrounding me. I reached about 20 minutes on the timer using this. Once I got to approximately 20 minutes, the ghosts stopped spawning for some reason. I am not sure if this is intentional or not. I really liked the creepy background, and the visual effect of the circle looks really nice. However, the game lacks audio and I think that brings it down quite a bit. Great job though!