Imperishable Night (Japanese: "Touhou Eiyashou") is the eight game in the Touhou series of manic shoot 'em ups. In the game, you pick between 4 teams, each comprised of a human character (controlled when unfocused) and a ghost (controlled during focused-fire mode). The two characters can have very different attacks, and certain enemies are more vulnerable to one character or the other. [source:tigdb]