The First 15 Mintues of Akiba's Trip: Undead & Undressed (Vita)

Copied from MobyGames:Akiba's Trip: Undead & Undressed is a 3D fighting brawler set in a modern day version of Japan's Akihabara district in Tokyo. The protagonist is called Nanashi or 'Nameless'. He is an otaku-type high school student who is on his way to a job interview. He ends up strapped on an operating table where he is told that he has signed a contract with the Magaimono organization. This contract allowed them to turn him into a synthister, a vampire-like superhuman that feeds off other people's life energy. He is quickly rescued by a girl called Shizuku Tokikaze. a friendly synthister and her blood allows the protagonist to withstand his task and defend Akihabara instead.Along with a band of freedom fighters Nanashi gets to roam the streets of Akihabara with over 100 shops modeled after the real life ones. Fights are done with brawling beat 'em up gameplay against one or more opponents in a small environment. Just like the protagonist himself the synthisters are sensitive to sunlight, so he needs to tear off one or multiple parts of their clothing through a stripping mechanic, exposing them to sunlight which kills them.

http://www.nicovideo.jp/watch/sm41676385