A ridiculous premise makes for a fun, addictive game that gets more and more crazy as you progress through it.
At first, they just put buckets and traffic cones on their heads to protect themselves from the barrage of vegetation. But when that fails, they bring out the big guns. Football pads, screen door shields, thriller-esque zombie dance squads, bobsled teams, and zombies driving zambonis (zombonis) will threaten to devour your brains. Of course, as your zombie nemeses become more powerful, so do you. By the time you reach the end of the game, you have a powerful arsenal of plants to defend your house from the zombie onslaught. You will have corn cannons, cabbage-pults, snow peas, potato mines, cherry bombs, and, of course, wall-nuts. And then there's the occasional visit from your neighbor, Crazy Dave, who sells you things out of the back of his truck, such as rakes, which you can put into your yard so that zombies can step on them and get smacked in the face by the handles.
Plants vs. Zombies is also crammed with a multitude of mini-games that you can play once you have unlocked them. You can even start a "zen garden," in which you grow plants that you can eventually sell for cash, which you can then use to buy access to more heavy artillery! All of this is monitored through the easy-to-use Suburban Almanac, which tracks all of the plants in your vegetable army and all of the zombies you have seen, so you can keep tabs on your progress.
This game receives an 8 out of 10 because while it is fun to play, original, and over-the-top hilarious, it isn't very challenging. Even if the zombies get to your house, they get mown down (literally) by lawnmowers, so you always get a second chance. Only if the zombies reach your house twice will they enter the front door and devour your brains. If you want challenges, you have to unlock a bunch of the mini-games. The adventure mode itself is fairly simple and, while it does get crazier, it does not get very difficult.