To add a new category to a page you can click the Category button at the bottom of the page and type in the name you'd like your category to be called.
A full list of existing categories can be found at Special:Categories.
Pages in category "Browse"
“ Meet four average Omnitrix aliens: Goop, XLR8, Buzzshock and Gutrot, who live in a relatively...
The Alien Universe
“ Use this to create pages. Want to change the very fate of the Ben 10 universe? Use the button to...
Page Creation Portal