Great game but frustrating issues

Graphics, game play and music all are awesome. Biggest complaint is that you need to earn a high enough score first before getting more "credits" which you need to be able to play longer. And even on "easy" the game is insanely hard. Anytime all credits are used up you need to start from the beginning - so no ability to just keep replaying the level where you died. That made me stop playing after reaching end of 3rd level

TDDragon about OPERATION DRACULA