Terrible game！ Not only they don't correct their bugs, but they don't even care if you spend (a lot) of money : you loose your progression... and come back to the same last level (down) of VIP ! And they don't pay attention to your emails, they simply don't answer ! (2 messages sent, waited more than one week). Uninstalled the game after this, unfortunately I couldn't have back my money. I don't recommend it at all. Don't loose your time, try another shoot'em up. Update: still no answer after 2y