Hanazono Jinja (花園神社) is a shinto shrine in Shinjuku, right next to Kabukicho. It holds its annual festival in May. As usual in Japanese festivals, there are many food and game stalls on the grounds of the shrine, while the mikoshi are paraded around the neighbourhood.
Above, mikoshi at rest.
Above, someone dressed as a tengu.
Above, festival pig.
Above, parading on Yasukuni Dori.