Bonuses, Zombie Tsunami Wiki

Collecting a bonus will change zombie horde into a different creature. Bonuses can be activated by collecting special box with question marks on it. Box is appearing periodically during the game (approximately once per every background). After collecting the box, zombie horde will take a form of the bonus. Bonuses are assigned randomly. However, if you have any missions that require a bonus, the game is most likely to assign that bonus for your convenience. Bonus can be upgraded or prolonged in

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