What he means by America vs Japan isn't actually a style but characters so example, Captain America vs Kakashi or Adventure time vs J pop sensation. Different things that you feel represent America or Japan. As long as ppl and the judges can figure out who you are you don't need to go super crazy with your costume cause it gets hot and your dancing so you want to be able to move around at your best.
Zenkaikon 2013 Cosplay Line Up
SNJ Kakashi- Naruto
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