BBcode is used to format text, insert url's and pictures in a post on the forums, profile, comments and in PM's. BBcode is similar to HTML. The only difference is BBcode uses square braces  instead of <> in HTML. Written by Cheesebaron.
You can change the style of the text the following ways:
[b]bo-rudo[/b] - this makes the text bold
[u]anda-rain[/u] - this underlines the text
[i]itarikku[/i] - this italicises the text
[s]sutoraiki[/s] - this strikes through the text
[center]text[/center] - this centers the text
[right]text[/right] - this right justifies the text
[color=blue]buru[/color] - this changes the text color to blue
You can also use colour codes to define what colour you want your text to be
[color=#FFFFFF]Shiroi[/color] - this changes the text color to white
You can change the text size by using the [size=][/size] tag, the size is dependant on what value written. You can choose 20 to 200, which is representing the size in percent.
[size=30]KOMAKAI[/size] - will give a very small text size
[size=200]KOUDAI[/size] - will give a huge text size
Posts a YouTube video.
You can create a list by using the [/list][list] tag.
To create an un-ordered list:
To create an ordered, numbered list:
There are two possible ways to link to someting, both using the [url][/url] tag.
[url]http://www.myanimelist.net[/url] - this would make an url showing http://myanimelist.net
[url=http://www.myanimelist.net]Visit MyAnimeList[/url] - this would display Visit MyAnimeList as an URL.
To insert a picture to your post you can use the [img][/img] tag.
To make a spoiler button use the [spoiler][/spoiler] tag, and the text in between the tags become invisible until the "Show Spoiler" button is clicked.
[spoiler]This is a spoiler for an episode of an anime that could make people angry[/spoiler]
You can combine BBcodes, but you have to remember to end the tags in the right order
This example is WRONG:
This example is RIGHT: