Note

Notes are pieces of paper dropped and written by the zombies. Each note precedes a conveyor-belt level, the last level of a stage and alerts the player to the fact that the next level will be a conveyor-belt level. The normal notes have horrible grammar and handwriting, since the zombies are all unintelligent. However, because of his intelligence, Dr. Zomboss has excellent grammar and wonderful cursive handwriting with brush script style.

In Plants vs. Zombies, the note is earned after completing the ninth level in an area. When the player picks it up, the note will disappear into some stars. The screen will then fade, and the note will be revealed to the player. If the player clicks the "Next level!" button at the bottom of the screen, the tenth level will start.

Help Note
The "Help" section of Plants vs. Zombies can be accessed from the main menu (in the iPod Touch and iPhone versions, it is accessed by the option menu and in the European Nintendo DS and DSi versions, it is known as "Hint"), and turns out to be a sloppily written note (similar to those seen at the ninth level of every stage of Adventure Mode and at the end of the last level) appears.

However, this note is not in the PS3/XBox360/PSVita version, as it is replaced by an actual help menu (although it is on a piece of paper that looks like a note from the zombies).

Help for Plants and Zombies Game

When the Zombies show up, just sit there and don't do anything. You win the game when the Zombies get to your houze.

-this help section brought to you by the Zombies

About the Help Note
There is no doubt that this was put in as a joke as the player gets some help when first playing the game (as well as a digital manual that comes with computer versions of the game, readme.html, and an instruction booklet with the Nintendo DS version), and as it says it was made by the zombies. For some versions, instead of an in-game help section, PopCap Games decided to put in a unique feature, the Tree of Wisdom, that gives the player tips on playing the game the higher it is grown. It will stop giving tips after it is grown it to 1,000 feet (after 50 feet, it will only give 'milestone tips', tips until grown to 100, 500, and 1,000 feet).

Trivia

 * The note the player receives before facing Dr. Zomboss has a background on a lawn, instead of the roof, where it was obtained.
 * The note the player gets in the Fog levels says that it is his or her mother. This is the only place where it says the player has a mother in the game. However, the note seems to be from the zombies, as it has the same font the zombies write. Also, the words "this" and "mother" are misspelled.
 * The zombies ask the player to leave him or her front door open and your lawn unguarded while he or she leaves the house, but the zombies cannot eat his or her brains if the player is not in the house.
 * The Roof note was made using the font Brush Script MT.
 * Despite that the Roof note is on the lawn during daytime, the note after you defeated Dr. Zomboss is on the Roof during nighttime.