I received some of the Series 1, 20 piece boxes today from Amazon. They are pretty much the same as the 15 piece box except there are 4 stickers and 6 hidden minis. The bottom rightmost hidden mini was, again, one of the sparkle titles I am wondering if they only did a few titles in the sparkle format. I have 8 of them now, but only 4 different titles: Boredom's, Fish Bone, Log Cave-In, and Skimpy (OS version). Still no Rotz, Gadzook, Ebayer, Minute Mud, or Jerkson's sightings, by me, anyway.