Plants vs. Zombies features a main Adventure mode with various minigames and side activities that enhance gameplay. Players earn coins from defeated zombies and minigames, with the Zen Garden providing a steady income for upgrades at Crazy Dave's car boot sale. Notable minigames include Beghouled, Last Stand, and I, Zombie, each offering unique gameplay experiences. The game combines humor, creativity, and strategic elements, keeping players engaged despite its casual nature.