Hetalia: The World Twinkle Extra Disc  

Hetalia: The World Twinkle - Surprise Halloween!, 「 ヘタリア The World Twinkle 」 えくすとらでぃすく

On Halloween, America invites all other countries to its party and holds a costume contest. Although many of the attendees come dressed in elaborate costumes, it becomes apparent that some have taken the competition too seriously. However, as the night progresses, guests begin to question why America has not yet shown off its own costume. What could be the reason behind this?