Strike Witches: Silver Wings is a bullet hell shoot 'em up developed by Cyberfront for Xbox 360. Players control a group of three witches, and change positions to best defend against the Neuroi. And this game also features Junko Takei, with Nishiki Nakajima as a downloadable character. It was released in Japan on July 29, 2010. In Jun 28, 2012, this game also available in PSP. Everything in Xbox 360 version also available in PSP version.
Installation instructions can be found here: http://www.mediafire.com/?5j4hwofi6oj59