I will give a 5 star review when the developers let player get ships without paying money because that is the only way to get most of them. I invested a lot of time into this game and i'm past boss 30 but my complaint is that i cannot get ships for example light storm and thunder and many many more. Also the other ones that aren't paid require a lot of time to get because their currency is rare and too expensive. The free spin also gives 1500 coins most of the time so it is not really random.