GOALS..

• The goal is to destroy all the zombies before they reach your house and "eat your brains", and keep  enough sunflowers alive,to earn 'sunshine' so you can grow them fighting plants.zombies stagger at you throughout the level,but are concentrated into 'waves',there may be one or two per level this is when everything  gets that much more intense.

• Because you require 'sunshine' from sunflowers (and also a special mushroom) in order to buy / grow any other type of plant your first goal should be to have as many sunflower as possible.On the early levels you need a minimum of three ,but by the end of level 3 you really need to be looking at six to eight.
•  keep your sunflowers as close to the house as possible,zombies should have to traverse the entire lane     before getting close to a sunflower. this will give you as much time as possible to get more sunshine so you can stop the zombie.
• Plants VS Zombies uses a lane and grid system,and the zombies stick to thier lanes you can distract them while you acquire more sunshine to start fighting back.Using the walnuts at the very top of the lanes will keep the zombies munching away long enough for you to stock up on sunshine and get a peashooter to start firing.

     NIGHT :

•  At night,the early levels don't feature too many graves,but they will eventually get so numerous you have to invest in the grave buster to free up some space. 

     POOL:

• On the pool levels,the zombies don;t take the water straight away so you can focus on the grass lanes before tackling the pool.Zombies have to chew through lilypads,even if there is nothing on them,meaning its a fast and cheap way tostall them while you install some bigger weapons.

    FOG:

•  During the fog,'planters' do last longer than the Blover's-but zombies can munch through them.Best to use the more expensive Blover,get your pattern well established before the waves come,then its not a major catastrophe if the frog returns.

    ROOF:

• When you make it to the roof levels,still have some peashooters in your arsenal.