A copy of the two objects of the player, as they were when the player entered the room (or as they are at the start of the game), which is put back by LoseLife when a life is lost. The first 32 bytes are the bottom half and the last 32 bytes are the top half. The byte at 51749 is the room number of the bottom half, and the byte at 51781 that of the top half. The byte at 51757 is the sprite that the bottom half will have when it appears, and the byte at 51789 is the sprite that the top half will have.