The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Article management templates (3 members)
- Article stubs (4 members)
- Beta and cut content (2 members)
- BlogListingPage (0 members)
- Blog posts (1 member)
- Browse (4 members)
- Candidates for deletion (4 members)
- Category templates (3 members)
- Characters (7 members)
- Community (4 members)
- Console (3 members)
- Content (5 members)
- Copyright (1 member)
- Disambiguations (0 members)
- Emoticons (0 members)
- Enemies (4 members)
- Forums (6 members)
- Games (9 members)
- General wiki templates (24 members)
- Help (6 members)
- Help desk (2 members)
- Hidden categories (2 members)
- Ice Climbers (3 members)
- Image wiki templates (9 members)
- Images (2 members)
- Items (3 members)
- Locations (4 members)
- Mountains (33 members)
- Organisation (8 members)
- Pages with broken file links (0 members)
- Policy (3 members)
- Protagonists (6 members)
- Record (1 member)
- Screenshots (0 members)
- Sidekicks (3 members)
- Site administration (3 members)
- Site maintenance (3 members)
- Stage (2 members)
- Super Smash Bros. (7 members)
- Templates (5 members)
- Videos (9 members)
- Watercooler (2 members)