Very Fun!
Great Game, I'm typically pretty satisfied with the games produced by BerzerkStudios. The graphics and everything were well done, but I wish I knew if more bars or less bars meant a faster reload - personally, they both looked like the same amount of time.
I had a problem with lag at times, especially in the later levels... if too much was happening, the game would freeze. I also disliked that I couldn't afford to get the first premium weapon.
What good is beating the game, getting all the stars, grinding for and spending tens of thousands of $, and receiving all achievements (other than those related to facebook) ... just to find out that you're short 25 Diamonds. The fact is - the "I'll be the best" achievement that requires you to connect to Facebook should be 25 Diamonds already, NOT 20 Diamonds. I shouldn't have to connect to Facebook AND invite a friend just to get the first specialty weapon - THAT simply kills the game.
To Zickar: By level 2-2, you should have gotten Double Jump as a skill already... with it, either jump near the edge of the ledge and grab hold to jump up (which is unusually difficult and a giant PITA most of the time) or do a double jump onto the edge of the ledge (which is another oddity that shouldn't work, but does, even though double jumping in the middle of the ledge doesn't get you high enough to be on it).
To Deadf1sh: Explore all game options before you decide to wuss out and quit on the game because you couldn't put forth the effort to buy a better shield.
All in all... this game was well developed. Btw, too bad the Laser weapons aren't on Full Auto - they are the best in damage, even if they don't look like it.