Shikigami No Shiro
is a vertical shooter by Alfa System that features gorgeous 3D backgrounds and the classic gameplay that everyone expects out of a shmup. A lot of effort has gone into making this game and it shows.
Press the return key to pause the game, and alt-Enter to play in full screen mode. The sequel is available for download as well.
Name: Shikigami no Shiro
Developer: Alfa System