Never underestimate the ingenuity of a true fan. Lego is selling blind packs of collectable minifigs, the idea being you’ll have to buy lots of extras in order to complete your set. However, Lego didn’t count on AFOLs figuring out the system. Apparently every bag has been embossed with tiny raised dots, marked in the photo but rather difficult to detect unless you know where to look. A forum poster on Lego Star Wars fansite FBTB cracked the system and various other fans confirmed it.
Collectable minifig code haxx0red