Level 3-4

Level 3-4 is the twenty-fourth Plants vs. Zombies level and the fourth Pool level. To complete this level, the player must not let the zombies into his or her house. When the player is finished with this level for the first time, he or she earns Crazy Dave's Car Key for access to Crazy Dave's Twiddydinkies.

Difficulty

 * The player has to again deal with the Snorkel Zombies along with the fast-moving Newspaper Zombie and Buckethead Zombie.
 * The player's garden has to be strong enough to surivive for three flags - a task that may not be easy to undertake.

Strategies

 * Suggested plants:
 * Sunflower
 * Potato Mine
 * Repeater
 * Wall-nut
 * Lily Pad
 * Squash
 * Tangle Kelp (if you have 7 slots)
 * Threepeater (if you have 8 slots)
 * Plant two columns of Sunflowers and plant Potato Mines at the start of the level. It is crucial to have two columns of Sunflowers as you need enough sun to last for three flags.
 * Plant as many Repeaters (and Threepeaters if you have it) evenly on the lawn. You will need at least three columns to easily shield off Buckethead Zombies and Pole Vaulting Zombies.
 * Plant at least one column of Wall-nuts to defend your plants. Also try to have Tangle Kelp planted near the Wall-nuts to drag down a zombie or two.  Replace them whenever possible
 * On the final wave, three zombies will spawn from the pool (most likely two Conehead Zombies and two Buckethead Zombies). Let some Tangle Kelp pull down some of those zombies to save some bites off the Wall-nuts.  From here, it should be really easy to pass the level with 6 lawn mowers remaining.