I went out in Roppongi this year for Halloween. It was so crowded, but fun as well with my British friend & Japanese friends. My costume was of a WW2 British officer, but people seemed to think I was a pilot? As this was before the US election, I saw many groups in Donald Trump & Hilary Clinton costumes. Many sexy cops, sexy maids, sexy everything as that's the main sort of costume here in Tokyo when it comes to Halloween or Christmas.