Imagine how complicated for it to be to go into our data from LBP, get the data of our costumes from LBP, and duplicate that data into an alternate costume. Sounds tough. Plus, not everyone has LBP. So, it wouldn't be fair.
The third party reasons also count too. Anyone that wants any character can simply make a costume of that character and add it in the game. I would've done Cloud and Sora if it was possible.
Shame, i wanted to use my Hawkeye Sackboy
Overall i just think it's too tough to implement and it would kinda suck for every other character with 3 costumes while sackboy has like, 1000. Too many obstacles in the way of implementing it overall.
Official Paramedic of the PSAS Forums bunker.