Thread:Kuby101/@comment-24738360-20140613162256/@comment-7211845-20140613211358

This is kind off hard. You must be using a desktop or a tablet (no mobile). When you edit the wikia page go on "visual". Then they're will be a categories section. You can edit it from there.

A faster way is to revert the edit of the user who added fake categories.

Hopes this helps.