Very interesting take on the theme and some good presentation. I was rather amused by the ghost's facial expression changes at every move.
Sorry to repeat everyone else's criticism, but the gameplay was made a little too hard with how narrow escapes can be. Also, I understand the Tetris blocks killing the ghost by falling on top of him, but it's a bit of a head scratcher that I died by touching the top. Maybe it's just a nitpick, though.
Either way, nice job.