So many glitches in the game....have been playing for over 3 months and it is like these developers don't care and just want your money. If you collect too many map rewards at once, the game glitches and needs a reset. My favorite is the pop up reminders you get to upgrade when there is actually nothing to upgrade. Please take the time and effort to fix the game you are asking for people to pay money into.
Not bad, much better then Protector. Still some glitches with guys firing across the screen and the board ending with enemys on it now and then. With a few corrections and additions this can be a great game! Oh...slots are to slow....