Use the following plant formation with the following items.
0: Sunflowers or upgraded flowers
1: A shooter plant
2: Repeater/upgraded
3: Three shooter plant (three lanes)
4: Fire Plant (fire tree that turns bullets to fire balls that pass through it)
5: Cattail
6: Squash (or Wallnut/Tallnut)
7: Small mushrooms
8: Chomper
9: Scardey Shroom
X: Free space
0 2 3 4 9 X 7 7 7 6
0 2 3 4 9 X 7 7 7 6
0 2 3 4 9 X 7 7 7 6
0 2 3 4 9 X 7 7 7 6
0 2 3 4 9 X 7 7 7 6
Defeating the final Boss
The final Boss will launch massive fire balls and ice balls at your plants. They will crush everything in their path except for zombies (basically, all plants in that row). To destroy the ice ball, use a Chili Pepper in that row. To destroy the fire ball, use an Ice Shroom, but also with a Coffee Bean or else it will fall asleep.
Digging all the way to China
On the awards page, scroll down like crazy. On the way down, you'll see tons of random and strange objects, like a worm with the head of a zombie. Well after awhile, you'll get to China and see Chinese zombies (zombies dressed as Chinese)
Dr. Zomboss: Easy completion
When Dr. Zomboss comes down to throw an ice ball or fire ball, you can use Freeze Shrooms to freeze him. This allows your various pults time to get some damage on Dr. Zomboss himself. Jalapenos will also cause damage to him when he is down to toss a fire or ice ball. The more damage you can do to 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.
Easy money
Get the Zen Garden. Water the plants until they do not need anything else. Advance the system date ahead. The plants will need water again. Buy 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. Try for 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. 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; getting the extra 100 points to win should be easy. Just collect enough sun to offset the slot machine. Keep 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.
Use the following trick to make Walnut Bowling more profitable. Protect the lawnmowers. Each mower is worth one gold coin ($250). Line up shots off the front runner. After the first zombie is hit, each additional zombie strike generates coins. Create a front runner where none already exists.Pole vaulting zombies will run fast until they vault over a nut, and the newspaper zombie runs 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 few zombies ambling down the lawn without a clear ricochet shot, wait some time to see if more of them will step out to play. They can always be killed once they cross the red line. Remember how many nuts it takes to kill a zombie. This is important when they cross the red line. Use one nut for regular zombies, three for bucket wearing zombies, and two for the others. Keep the exploding nuts in reserve. Try not to 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. 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.
Getting light in fog
When you are in fog and need light (and you do not have a lantern), use the torch wood if you have the sun. It shows you the space in front of it.
Gold trophy
Get all the trophies in Mini-Games, Puzzle, and Survival modes.
Hidden achievement list objects
The achievements are displayed as an underground list. Scroll through the list and keep going down to see various hidden objects including a zombie, the bookworm from Bookworm, jewels from Bejeweled, a unicorn fossil, and finally Chinese zombies staring back down the hole.
Increase plant growth
Disable full screen mode. Go to your zen garden. After feeding the plants, it will normally take thirty minutes to feed them again. To feed them all, change the system time to an earlier value. This will increase their growth.
Kill Bungees
To kill Bungees, use Chompers, Squash, Ice Shroom, Jalapeno, or an Umbrella Plant.
New seed selection
If you do not like the cards from Crazy Dave, exit the game and restart. The cards will change randomly.
Pole Vaulters
When there are Pole Vaulters, pick a Walnut and a Chomper and make sure you can dig up plants and have lots of sun.. Put down a Walnut and a Chomper behind it. The Pole Vaulter will go over the Walnut and straight into the Chomper. Then, dig up the Chomper and he is gone.
Quick Play Mode
Beat the Adventure mode once.
Silver trophy
Complete Adventure mode.
Suburban Almanac: Finding the imitator
Look at the top left of the almanac and click there. You will now see the imitator.
Various Achievements
Complete the indicated task to unlock the achievement.
Achievement
How to unlock
20 Below Zero
Immobilize 20 full-sized zombies with a single Ice-shroom
Alive and Planting
Get 40 flags in Survival Endless. (iPad only)
Better Off Dead
Get to a streak of 10 in I, Zombie Endless
Beyond the Grave
Beat all of the Mini-games
Blind Faith
Complete an extremely foggy level without using Planterns or Blovers
Chill Out
Feel the rhythm, feel the rhyme, you've one level to destroy 3 bobsleds, it's Jalapeno time!
Chilli Free
Complete Column Like You See 'Em without using Jalapenos
China Shop
Get to a streak of 15 in Vasebreaker Endless
Defcorn 5
Build 5 Cob Cannons in a single level
Diamond Beghouler
Upgrade all your plants in Beghouled
Disco is Undead
Hypnotize a Dancing Zombie. (formerly Thrilling the Zombies)
Don't Pea in the Pool
Complete a daytime pool level without using Peashooters of any kind
Enlightened
Collect all Zen Garden, Mushroom Garden, and Aquarium Garden plants
Explodonator
Blow up 10 full sized zombies with a single Cherry Bomb
Flower Power
Keep 10 Twin Sunflowers alive in a single level
Good Morning
Complete a Daytime Level by planting only mushrooms and Coffee Beans
Gotcha!
Find a Gargantuar in its vase using a Plantern in a game of Vasebreaker
Greenfingers
Grow 10 Zen Garden plants to full size
Grounded
Defeat a normal Roof level without using any catapult plants
Hammer Time!
Kill a total of 10 Gargantuars using mallets in Last Stand: Endless
Home Lawn Security
Complete Adventure Mode for the first time
I, Win
Win all 9 I, Zombie trophies
Last Mown Standing
Defeat the last zombie in a level with a Lawn Mower
Lawn Mower Man
Kill 10 zombies with a single Lawn Mower
Lucky Spin
Get 3 diamonds in Slot Machine
Melon-y Lane
Plant a Winter Melon in every lane
Monster Mash
Crush 5 zombies with a single Squash
Morticulturalist
Collect all 49 plants (including plants from Crazy Dave)
No Fungus Among Us
Complete a Nighttime Level without planting any mushrooms
Peking Express
How fast can you dig your way to China?
Penny Pincher
Pick up 30 coins on a single level without letting any disappear
Pool's Closed
Complete a Pool level without using water plants
Popcorn Party
Defeat two Gargantuars with corn cob missiles in a single level
Pyromaniac
Complete a level using only explosive plants to kill zombies
Roll Some Heads
Bowl over 5 zombies with a single Wall-nut
Second Life
Complete Adventure Mode a second time
Shooting Star
Complete Seeing Stars before the first Flag Zombie arrives
Smashing!
Win all 9 Vasebreaker trophies
Sol Invictus
Complete Last Stand with 2000 or more sun remaining
Sproing! Sproing!
Complete Pogo Party without using Tall-nuts or Magnet-shrooms
SPUDOW!
Blow up a zombie using a Potato Mine
Still Standing
Complete all 5 Last Stand levels
Sunny Days
Accumulate 8000 sun during a single level
The Stuff of Legends
Complete 15 flags in Last Stand: Endless
Undead Space
Grow your pile of zombies into outer space
Wall-Not Attack
Complete ZomBotany without using Wall-nuts, Tall-nuts, or Pumpkins
Where the Sun Don't Shine
Complete the first "I, Zombie" level with 1000 sun remaining
Zombologist
Discover the Zombie Yeti
Yeti Zombie
Just finish adventure once then play crazy dave's challenge when he picks 3 of your seeds then reach stage 4-10 and yeti zombie will appear there.
Zombie mini-games: Earning sun
The only way to earn sun in the zombie mini-games is to kill sunflowers. First, put a good zombie for the situation in the lane you want it to go in. Make sure that there are sunflowers planted in that lane. Collect the sun when the zombie eats the flower, then buy more items and eat the brains.