This was pretty fun.
It did get a little boring after a while though - it wasn't very challenging, and it didn't seem to get any more difficult over time.
Sometimes when moving around it could be confusing when a block dropped - some kind of feedback when clearing blocks or taking a hit would have improved this, and also made playing more satisfying.
The flashing tiles were also a little confusing to me. Something more solid, and with a better indication of when the block was going to drop would have been nice.
Oh and a button to drop bones early would have been nice.
The music was also kind of repetitive after a while.