Chicken Gun Heroes: Zombies

---------- Units You can earn units through levels, or obtaining a random one from a star box, which can be bought for 15 runes. Rarity varies by their star rating (1-4). Units can be upgraded, which increases health and their damage multiplier, amount of health per upgrade depends on their health, damage multiplier increases more depending on the units star rating (0.15 x Star rating per upgrad…