> Esthetic improvements of backgrounds 
> Changes of rooms (bg, sound and hero's position) 
> room start without monsters
> Resolved problem of hero's sprites (down <-> up)
> added updategraphics of other player in multiplayer mode but
multiplayer not working (hero doesn't WANT TO move ... why ???)
> Problem of monsters's teleportation when hero in the room : some super
power for them ??