Gave up at level 30...
Not a bad game, but it relies too heavily on pixel-perfect aiming, especially towards the end. In those levels that require that, the walkthrough is almost useless.
If you guys make a follow-up with this game, please don't make us shoot targets through the eye of a needle; it really took the fun away from this game.
Sound and visuals are pretty good, however, and I was enjoying myself prior to the latter half of the game.