I would just like to say that this game great, but also a little akward. Fighting the zombies, and things that was like was just easy. Then, trying to get the sewers, the game became existentially harder.
For some reason, I just keep coming back for more. The gameplay is slow, but not TOO slow. I really like the way this game is made. The tension builds up, and it makes you feel like a part of the soccer game. Well done sir, well done.
You start with more than 10; scroll down. Also, you can get more booster packs.