It seems a bit odd to call Rayhound a shooter when your ship doesn't actually have a single gun, but that's the best single-word description I can offer.

Your opponents, however, have lots of firepower and they're not shy about using it. How exactly do you go about defending yourself? Use your enemies' strength against them.

Use the mouse to control your ship's movement and left-click to engage your ship's gravity field. Time it right, and you'll gain control over enemy attacks and be able to redirect them to your advantage. Hold the mouse button down to keep the field engaged to drag their fire with you and release when you're ready to strike.

The visuals are simple yet stunning, especially in later stages when enemies become more numerous.

Rayhound is a free download for Windows, and is totally portable so Linux users might also be able to give it a shot using Wine.