This was a very unique take on the shmup - I'm surprised it's the first I'm seeing of it. Essentially, rather than shooting up, your craft follows your mouse and shoot where your mouse is pointed. It makes for a really fun experience. To boot, the game looks very professional from the sprite art to the menu design.
The one major flaw is having an ammo count, and losing when that ammo count runs out. Who wants to be limited to how much they can shoot in a shmup? What am I playing, Resident Evil?