Level 3-4

Level 3-4 is the 24th Plants vs. Zombies level and the 4th Pool level. When the level is finished for the first time, the player gets Crazy Dave's Car Key and gains access to Crazy Dave's Twiddydinkies.

Difficulty

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

Strategies

 * Suggested plants
 * Sunflower
 * Snow Pea
 * Repeater
 * Wall-nut
 * Lily Pad
 * Squash
 * Potato Mine
 * Threepeater (if you have eight seed 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, Snow Peas, (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 some Squash planted near the Wall-nuts to drag down a zombie or two. Replace them whenever possible.
 * On the final wave, four 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 six lawn mowers remaining.

Trivia

 * This is the first Adventure Mode level to have three flags.
 * This is the last level of the trial version.