A coloring book (or colouring book, or colouring page) is a type of book containing line art to which people are intended to add color using crayons, colored pencils, marker pens, paint or other artistic media. Traditional coloring books and coloring pages are printed on paper or card. Some coloring books have perforated edges so their pages can be removed from the books and used as individual sheets. Others may include a story line and so are intended to be left intact. Today many children’s coloring books feature popular cartoon characters. They are often used as promotional materials for animated motion pictures. Coloring books may also incorporate other activities such as connect the dots, mazes and other puzzles. Some also incorporate the use of stickers.
In Plants vs. Zombies, players place different types of plants and fungi, each with their own unique offensive or defensive capabilities, around their house, in order to stop a horde of zombies from reaching it. The playing field is divided into 5 to 6 horizontal lanes, each with lawnmowers, and with rare exceptions, a zombie will move towards the player’s house along one lane only (the main exception is if it has bitten a garlic, causing it to move to another lane). Planting costs “sun”, which can be gathered for free (albeit slowly) during daytime levels and by planting certain plants or fungi. Most plants can attack or defend against zombies in the lane they are planted in only. In later levels, players can purchase upgrades with different offensive and defensive abilities.