plants vs zombies 2 upgrades. . Juega a la aventura de acción y estrategia en la que podrás conocer, saludar y derrotar a legiones de zombis alocados desde el amanecer de los tiempos hasta. At the beginning of the game. They have different designs in each game. Seed slots represent the number of seed packets the player can bring into a level. Zombies 2, premium plants' seed packets have a unique look, with a shiny gold outline and galaxy look for the center, and since the update, world obtained.