Puzzle Mode

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“	Brain-benders and troublesome tasks aplenty in the Puzzles!	”
—Crazy Dave, Plants vs. Zombies (Nintendo DS)

Puzzle Mode is a game mode in Plants vs. Zombies that consists of two (three in the iOS and Android versions) separate puzzle types. It is unlocked on Level 4-6 by receiving a present that is dropped by a random zombie on the level. However, the player cannot play all the levels until they complete Adventure Mode. In the iOS and Android versions of Plants vs. Zombies, the player must purchase the I, Zombie, Vasebreaker, and Last Stand (iOS, iPhone/iPod Touch and Android only) game packs. Otherwise, they can only play the first one before buying them.

Vasebreaker

Main article: Vasebreaker (PvZ)

In this puzzle, the player has to use an inconsumable mallet to break open vases pre-placed on the lawn. The vases contain plants, zombies or sun. In order to complete the level, all vases must be broken and all zombies must be defeated. Different Vasebreaker levels have different plants and zombies, but there are some features common to most of them. A lot of levels feature left-facing Repeaters, and after To the Left, all levels have two green plant-containing vases with a leaf symbol on them. These vases always yield plants. However, most vases are brown with a question mark on it, meaning its content is undisclosed. Additionally, Planterns in Ace of Vase and Vasebreaker Endless show the contents of the vases adjacent to them. In Ace of Vase and Vasebreaker Endless, there will always be a Gargantuar in one of the vases, and after every streak of ten in Vasebreaker Endless, one more will appear (the maximum amount being nine Gargantuars). An introduction level of Vasebreaker is featured in Adventure Mode also as Level 4-5 and by replayed in game versions with Quick Play. In the iPad version, the player has to purchase this game pack from Crazy Dave.

I, Zombie

Main article: I, Zombie

I, Zombie is a group of levels where the player must deploy zombie units to overcome cardboard plants and to get to the end of each row, where there is a brain. It is important to note that cardboard plants are like normal plants in every single way except appearance. The level is won when all the brains have been eaten, or lost when there is not enough sun to place any more zombies on the lawn, all the brains haven't been eaten and no zombies are present on the lawn.

In the beginning of the first level, Crazy Dave tells the player that the zombies wanted to practice invading houses, and of course he did not want any plants harmed, so he put cardboard plants on the player's lawn. It is believed that Crazy Dave made the plants come to life with his Magic Taco.

Last Stand

Main article: Last Stand (Puzzle Mode)

In this puzzle, which is exclusive to the iOS and Android versions of Plants vs. Zombies, players are given an initial amount of 3000 (Day and Night levels), 4000 (Pool and Fog levels), or 5000 (Roof and Endless levels) sun. Crazy Dave has already chosen several plants suited for that level for the player. The difference between the mini-game and puzzle Last Stand is that between zombie waves, removing plants give a refund of sun equivalent to its cost, although damaged plants are removed without refund (applies to Pumpkin, Garlic, Wall-nut, Tall-nut and Spikerock) and upgrade plants will only get the cost of the upgrade itself (for example: if the player removes a Gold Magnet, they will only get 50 sun from the Gold Magnet, and not the additional 100 sun from the Magnet-shroom).

Strategies

See Puzzle Mode/Strategy Guide.

Gallery

Trivia

The music playing during I, Zombie and Vasebreaker is "Cerebrawl" (by Laura Shigihara). This is because the player is both fighting for the zombies (plants in I, Zombie) and the plants (Vasebreaker) but must also use strategy to win.
- Cerebrawl is a pun off the word "Cerebral".
I, Zombie and Vasebreaker both take place at Night, because there are mushrooms in both I, Zombie and Vasebreaker.
I, Zombie is a reference to the book and movie I, Robot.
If the player completes a Vasebreaker level that has been already done, the money bag gives two Gold Coins, but in the I, Zombie levels it brings five Gold Coins, making I, Zombie a more efficient replay-type way to get Gold Coins.
I, Zombie and Vasebreaker appear as separate game modes in the Windows Phone 7 version.
The cardboard plant sprites in the Nintendo DS version of I, Zombie use the same sprites as the normal plants.
The cardboard plants on the iPhone version look a little more realistic and lean slightly.
There are ten achievements about Puzzle Mode. Three are about Vasebreaker (Smashing!, China Shop, and Gotcha!). Three are about I, Zombie (I, Win, Better Off Dead, and Where the Sun don't Shine). Three are about Last Stand (Still Standing, The Stuff of Legends, and Hammer Time!). The last one is about the whole Puzzle Mode, Think Hard, which is only acquired on the DS version.
Conveniently, Puzzle Mode cannot be activated until beating Level 4-5 on most versions, after obtaining the Magic Taco.
- However, on iOS and Android versions, it is activated after Level 2-2, making it possible for zombies to be encountered earlier on in the game.
  - But they will not be added to the almanac until the level is played in Adventure Mode.
Vasebreaker is the only mini-game from Puzzle Mode so far to make a return in Plants vs. Zombies 2.