Thanks

Going for the Pacifist achievement I realized there's a huge exploit in the game. As long as you don't shoot any asteroids you don't get any of the actual enemies. This way you can max level your weapon and get a huge point/multiplier headstart before you actually start your run. If you're really grindy you can probably get yourself a massive highscore without firing one shot. It's obviously not a fun way to play the game, but I can see people take advantage of it....

Windows 7 64x GTX 680

With lives you can make the game harder with a new game mode.

Is there any way to regenerate health in the game? Any powerups that you can take? Or do you have the health you have, and that's it?