Cheiromancer said:azhrei_fje notes that inanimate objects cannot be damaged by magic missile. Wouldn't this includes the figments created by a Mirror Image spell? They thus absorb the missiles directed at them without being harmed.
and since all the missiles strike at the same time and all the images react to the strike at the same time, it works to conceal which is the real image..unless none of the missiles targeted the real mage.