The final Boss launches massive fire balls and ice balls at your plants that crush everything in their path except for zombies (basically, all plants in that row). use Chili Peppers to destroy the ice ball and Ice Shrooms (with a Coffee Bean) to destroy the fire balls.
Disable full screen mode and go to your zen garden. After feeding the plants, it usually takes thirty minutes to feed them again. To feed them all, change the system time to an earlier value, thus increasing their growth.
Make sure you have at least eight slots of seed before starting. Select the following plants: Repeaters, Gatling Peas, Tall Nuts, Tangle Kelps, Lily Pads, Torchwoods, Coffee Beans, and Magnet-Shrooms, Afterward, set the following layout: put two Repeaters from the back columns on every row (except the pool), only one Repeater on the back columns on every pool row (use Lily Pads first), then change the Repeaters on the pool to become Gatling Peas. Put Torchwoods in front of the Repeaters and Gatling Peas (on the pool use Lily Pads first), then give the space a column and plant the Magnet-Shrooms on the lawn only. Wake them up with Coffee Beans and, front of the Magnet-Shrooms on the lawn, plant the Tall Nuts. Note: Plant the Tangle Kelps on the last time. The layout should appear as follows.
R R T M N R R T M N ------------------------ G T K K K K G T K K K K ------------------------ R R T M N R R T M N
R = Repeaters G = Gatling Peas T = Torchwoods K = Tangle Kelps M = Magnet-Shrooms that have been awakened N = Tall-Nuts
Select the following plants (at least eight slots required): Pumpkin, Lilypad, Magnet-Shroom, Gold Magnet, Marigold, Doom-Shroom, Coffee Bean, and Wall-Nut. Fill the remaining slots with plants of your choice. Use the following layout for an easy victory. First, put Pumpkins on the first three Marigolds starting from the Wall-Nut, except the Marigold on the pool. Make sure not to put any Pumpkins on the pool. Start the game. If you have enough sun power, put a Doom-Shroom in to replace with the thing in the two Gold Magnets, then awaken the Doom-Shroom with a Coffee Bean.
M M M M M M M M W M M M M M M M M W M M M M G M M M W M M M M G M M M W M M M M M M M M W M M M M M M M M W
M = Marigold P = Pumpkin L = Lily Pad W = Wall-Nut A = Magnet-Shroom G = Gold Magnet D = Doom-Shroom C = Coffee Bean
Follow the proceeding formation to make things easy. Note: Upgrade Repeaters to Gatling Peas when you have sufficient sun power.
MP RMS T MP RMS T MP RMS T MP RMS T MP RMS T MP RMS T
MP = Melon-Pult R = Repeater MS = Magnet-Shroom T = Tall-Nut
Kill flowers to earn sun in the zombie mini-games. First, put the best zombie for the situation in the lane you want it to go in, making sure that there are sunflowers planted in that lane. Collect the sun when the zombie eats the flower and buy more items.
Use the following plant formation with the following items to create a fort:
0: Sunflowers or upgraded flowers
1: A shooter plant
3: Three shooter plant (three lanes)
4: Fire Plant (fire tree that turns bullets to fire balls that pass through it)
6: Squash (or Wallnut/Tallnut)
7: Small mushrooms
9: Scardey Shroom
X: Free space
Use up all your tree food at your Tree of Wisdom and. It will say that you have 0 now, but go to the icon and drag the bag and you may have an extra. Return to your Zen garden and then right back to your Tree of Wisdom, Crazy Dave will now give you another 5 bags. In order to repeat this use up all 5 bags then drag an extra time for a sixth bag. Repeat the process.
Get the Zen Garden and water the plants until they don't need anything else. Advance the system date ahead and the plants will need water again. Purchase new plants, grow them to full size, then sell them. Repeat this to earn more money. You can also use this technique when you have to get Marigolds in Crazy Dave's shop when they are out of stock.
Set up your defenses around the slot machine as follows: one row of walnuts on the right side, one or two rows of sunflowers on the left, and fill everything else with pea and snow pea shooters. Protect the lawn mowers as each is worth a Gold Coin at the end of the game; do not let them mow the zombies. Stop collecting sun at about 1,900 sun points. At this point, the garden should be full and acquiring the extra 100 points to win should be easy. Just collect enough sun to offset the slot machine while keeping the slot machine spinning. It will randomly drop one or three gems as long your patience lasts. If the zombies get close to the mowers, end the game. Just collect the sun lying on the field to end the game.
To make Walnut Bowling more profitable, protect the lawnmowers as each is worth one gold coin ($250). Line up shots off the front runner. After the first zombie is hit, each additional zombie strike earns you coins. Create a front runner where none already exists.Pole vaulting zombies will run fast until they vault over a nut, and the newspaper zombies run fast after getting the paper destroyed by a nut. Let them run a short distance down the lawn before sending a nut their way. You do not need to use nuts. When there are a couple zombies ambling down the lawn without a clear ricochet shot, wait a while to see if more of them will step out to play. They can always be killed once they cross the red line. Use one nut for regular zombies, three for bucket wearing zombies, and two for the others. Also, keep the exploding nuts in reserve and don't use them unless a mob crosses the line or there are not enough nuts or room to clear out a difficult to kill zombie. Use the regular walnuts for the zombies that have not reached the red line. Do not use exploding nuts to kill pole vaulting zombies directly as pole vaulting zombies only jump obstacles in their own lane. A pole vaulting zombie who has not vaulted yet will safely jump over explosions or nuts in their own lane. Find a neighbor in the next lane and time the nut to hit when the pole vaulting zombie gets close to the neighbor.
When Pole Vaulters are present, pick a Walnut and a Chomper and make sure you can dig up plants and plenty of sun.. Put down a Walnut and then a Chomper behind the Walnut. The Pole Vaulter will hop over the Walnut and straight into the Chomper. Then, dig up the Chomper and he is no more.
When Dr. Zomboss comes down to throw an ice ball or fire ball, use Freeze Shrooms to freeze him. This gives your pults time to get some damage on Dr. Zomboss himself. Jalapenos also inflict damage to him when he is down to toss a fire or ice ball. The more damage you inflict on Dr. Zomboss, the faster and easier it is to end this level. Save at least one Freeze Shroom and one Jalapeno for whatever he tosses.
The achievements are shown as an underground list. Scroll through the list and keep going down to see a bunch of hidden objects including a zombie, the bookworm from Bookworm, jewels from Bejeweled, a unicorn fossil, and even Chinese zombies staring back down the hole.