Is it possible to get over the three ghosts? I think the game actually might be impossible now, since my grave didn't seem to appear when I died to a ghost. Also, I think one easy way to improve the game is to let players move around the level as a ghost (but without collision) once dead. Perhaps maybe they can only go as far as the farthest player.
I admire the effort though, this thing seems like a really hard thing to playtest.