Survival: Day (Jackninja5's Strategy)

Before First Flag:
 To start with, choose the following plants here:

 Do not choose Repeaters! They are for the next flag! Make two columns of Sunflowers! But if you don’t plant them in time focus on planting Peashooters! Then plant Snow Peas for the Coneheads. This is pretty easy and so your lawn should look like this:
 * Peashooter
 * Sunflower
 * Snow Pea
 * Wall-nut
 * Potato Mine
 * Cherry Bomb (optional)
 * Jalapeno (optional)
 * Spikeweed (optional)
 * Squash (optional)
 * Tall-nut (optional)

 S S P SP

 S S P SP

 S S P SP

 S S P SP

 S S P SP

 S = Sunflower, P = Peashooter and SP = Snow Pea. If you don’t plant enough Sunflowers, don’t worry! Just plant them before the second flag.  NOTE: You can use Potato Mines if you don’t have enough sun for P’s and SP’s! You can use Squashes too!  Before Second Flag:

 Two Lesson! Sorry, I just wanted to be funny! Anyway, choose these dudes/dudettes:

 OK! So continue planting Sunflowers until the zombies come! Actually until the Screendoors and Newspapers come! Or plant Repeaters whenever you want but dig up the Peashooters first! Also you might want to replace the Snow Peas with Torchwoods! Now your lawn should look like this:
 * Sunflower (only if you haven’t planted enough Sunflowers)
 * Repeater
 * Twin Sunflower
 * Torchwood
 * Squash (optional)
 * Wall-nut (optional)
 * Cherry Bomb (optional)
 * Jalapeno (optional)
 * Tall-nut (optional)
 * Chomper (again optional)

 TS TS R TW

 TS TS R TW

 S S R TW

 S S R TW

<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> S S R TW

<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> TS = Twin Sunflower, R = Repeater and TW = Torchwood. <p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> NOTE: Plant Twin Sunflowers wherever you want on Sunflowers in all levels after this. <h2 style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Before Third Flag:

<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Now for the third step! Choose these plants:

<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Those Buckethead Zombies have a surprise! Also try to keep planting Gatling Peas! And there isn’t much else to do besides the Twin Sunflowers!
 * Twin Sunflower
 * Gatling Pea
 * Any instant kills or defensive plants

Before Fourth Flag:
<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Nearly there! Choose:

<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Football Zombies are here! Not a threat if you have a Gatling Pea and a Torchwood combined! Keep the Twin Sunflowers up! <h2 style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Final Flag:
 * Twin Sunflowers
 * Gatling Peas
 * Anything else

<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Last step! Plant:

<p style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Only need a Twin Sunflower needed! Nothing else to say! The end! <h2 style="margin:0.0px0.0px0.0px0.0px;font:12.0pxHelvetica"> Trivia
 * Twin Sunflower
 * Anything else


 * This is easy for killing zombies but hard for collecting lots of coins and sun.