Good with flaws
It was quite good but it had some flaws. The rate at which you gained money went up and down seemingly at random, once on level 4 i got 6 million gold in one level(not kidding don`t know if this was a glitch or secret or something)then 5 levels later i am getting a measly 90k gold per lvl. That`s about all i have to say that hasn't already been said(make the ships smaller and/or the bullets smaller make it harder ect ect.)