Like in space, if you mess up the throttling maneuveurs, you're screwed :( But in a game, I would suggest to have a possibility to restart or add bounds to the edge of the screen, because I managed to fly out of the visible area many times. Beside this, it's an interesting puzzle game with nicely designed levels. You incorporated the idea of one button steering, so it's also a great foundation for mobile casual puzzle game market. Generally, a nice entry, congratulations!