Too hard
This has the capacity to be a wonderful game. However, the interface seems to have been designed with the philosophy that an application should hurt the user.
Not all of us spent 58 hours beta testing this game like you did.
I urge everyone who cannot beat level 2 on "easy" to let their votes reflect this, and not be dazzled by the graphics, until the author comes up with an "easy" setting that doesn't mean "nightmare." A game that you can't win isn't any fun, even if it's flashy.
Also it would be nice to have a couple tilt keys for the spaceship to aim better.