Shibuya was brimming with superheroes, otherworldly creatures and scores of police Saturday night as costumed revelers congregated in one of Tokyo's major entertainment districts on the weekend before Halloween.

While the area around Shibuya's iconic scramble crossing filled with many Halloween revelers as the night went on, riot police were dispatched there to ensure public safety, especially after the overturning of a small truck led to the arrests of several men in their 20s last year.

The police and special officers dubbed "DJ police," who aim to marshal crowds with a spirit of goodwill, will also be present on Halloween night on Thursday.