A new developer diary for Plants vs. Zombies 2: It's About Time discusses the game's scenario and the challenges of moving forward while preserving the essence of a beloved original game.
Immediately after the defeat of Dr. Zomboss at the end of the first game, the player's neighbor Crazy Dave eats a taco in celebration. It's so good that he wants to eat it again, and invents a time machine to go back to before he ate the taco to do precisely that. However, the time machine malfunctions and throws Dave and the Player back through the ages.
Plants vs. Zombies 2 includes a World Map, a first for the series, in which the player can progress through three eras: Ancient Egypt, the age of piracy, and the Wild West. Specifically, these are the eras included "at launch," indicating that more could be added after the game's release.
The game also adds a Plant Food mechanic, to give your plants a limited-use power-up for emergencies. This, says the video, allowed the developers to bring the iconic plants back from the original while still making them feel new and improved.
Plants vs. Zombies 2 will launch on iOS this summer.