Hardcore shoot 'em up.
The story, like most games in the genre, is given little information about and is difficult to follow.The graphics are animé style and work well. The Music is techno-ey and Japanese-ey and fits the game well.
The Game is styled like an Animé but IS a difficult to master shoot-em-up. Though completing the game isn't a challenge (the player has infinite continues) playing through on either of the 3 difficulties without losing a life is near impossible.
All in all if your a fan of the genre you'll probably enjoy this game as it offers it's own unique "Anchor" system. If, however, you do not enjoy games like Omega five and Ikuruga or animé girls sicken you then mabe you'd best stick to CoD4 :)