In the adverbabble for the Mini kits, it is mentioned that if one buys four particular kits, one will have the parts of a fifth. (For example: The AT-AT, Millenium Falcon, Republic Gunship, and Trade Fed. MTT kits have the parts for a Y-Wing Mini kit.)
Does one have to buy the 4-packs specifically to get the extra parts, or can one simply buy the kits singly and get the parts for the fifth kit?
CF