By the way, the upgrades that are indicated as costing "0.1Sx" actually cost 1 Sx. I've called this a great game before. Still loving it 3 months later.
You know the game is unbalanced when Endless mode becomes "eat as many bullets as you can to end the game" mode. This game hasn't really improved on previous versions :(
Been stuck on the second last level for hours. Right before I gave up, the game stuck me with the cards 6-6-6 at the heads of three huge piles. Talk about a middle finger.