Having same issue of not being able to get the "Clothes Make the Monster" gold star. Want to know something random...I looked through the Infinity Prima Game Guide and that darn star isn't even listed. They have 30 gold stars listed for MU...but this isn't one of them. I then became curious and tried to find out which they listed instead that wasn't in the game...like a one for one switch. Again, none existent. In fact, if you count the stars in the game under the mission log you will find that there are 31 stars listed! I was pretty sure that all the playsets were supposed to have 30...and Prima agrees...but if you actually count them in Monsters you will find there are 31 and that darn Clothes one is unobtainable for me...so far.
Has anyone actually been able to get this star? If so, you may have been able to snag an extra "free" star!