As I am German myself I can say that the word Luftrausers makes no sense unless you let "air-outers" count as a word.
Nonetheless, this doesn't mean the game is bad. In fact, it's really fun. It's one of those rare arcade games that concentrate on actual gameplay and not so much on trying to look like an arcade but actually are full of content.
It's a simple shooter, easy to pick up and have fun for an hour before taking a break from it. What's so special about it compared to normal classic shooters is the fact that you can turn your aircraft 360°, meaning you have targets on all sides. Another interesting part is the customization of your jet. Customizable parts are the body/hull itself, the weapon and the thrusters, each giving different advantages and disadvantages. In total, here are 125 possible different customization options, and each part changes an instrument of the music, i. e. the lead, the bass and the drums, depending on the part you switch. The music remains the same, but the different instruments give a new theme every time.
If you're good enough, you'll eventually unlock the SFMT mode (which, judging by its difficulty, apparently means "Say F*ck Many Times".)
Recommended for people who like classical and challenging shooters and don't care about fancy graphics.