The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- All article disambiguation pages (8 members)
- All disambiguation pages (12 members)
- Animal Crossing (1 member)
- Ar-0 (0 members)
- Archived (2 members)
- Article message templates (1 member)
- Article message templates with missing parameters (4 members)
- Articles using small message boxes (1 member)
- Articles with short description (2 members)
- Babel - Users by language (28 members)
- Da-0 (0 members)
- De (1 member)
- De-1 (1 member)
- En (4 members)
- En-2 (0 members)
- En-3 (1 member)
- En-N (3 members)
- Es (1 member)
- Es-1 (1 member)
- Es-2 (0 members)
- Es-3 (0 members)
- Es-4 (0 members)
- File message boxes (3 members)
- Fr (0 members)
- Fr-4 (0 members)
- General guides (14 members)
- He (0 members)
- He-2 (0 members)
- He-N (0 members)
- Help pages (3 members)
- Hidden categories (21 members)
- Hu (1 member)
- Hu-N (1 member)
- Imported from hacks.guide (11 members)
- Infoboxes without image alt text (10 members)
- It (0 members)
- It-5 (0 members)
- Ja (1 member)
- Ja-1 (1 member)
- Lua-based templates (4 members)
- Nintendo 3DS (6 members)
- Nintendo 3DS games (10 members)
- Nintendo 3DS guides (87 members)
- Nintendo 3DS homebrew (42 members)
- Nintendo 3DS information (15 members)
- Nintendo Switch (5 members)
- Nintendo Switch games (1 member)
- Nintendo Switch guides (2 members)
- Nintendo Switch homebrew (3 members)
- Nintendo Switch information (2 members)
- Outdated software (5 members)
- Page translators (1 member)
- Pages that may need updating (0 members)
- Pages using DynamicPageList3 parser function (1 member)
- Pages using Tabber parser tag (75 members)
- Pages with broken file links (1 member)
- Pages with incorrect template use (0 members)
- Pages with script errors (3 members)
- Pages with short description (16 members)
- Pl (0 members)
- Pl-N (0 members)
- Pokémon (8 members)
- Software without a release date set (8 members)
- Software without a version set (6 members)
- Stubs (2 members)
- Talk message boxes (1 member)
- Templates using TemplateStyles (4 members)
- Templates using TemplateStyles without padlocks (1 member)
- Unbricking (11 members)
- Wii (4 members)
- Wii Information (1 member)
- Wii U (4 members)
- Wii U games (2 members)
- Wii U guides (8 members)
- Wii U homebrew (12 members)
- Wii U information (0 members)
- Wii games (6 members)
- Wii guides (13 members)
- Wii homebrew (17 members)
- Wii information (0 members)
- Wikipedia fully protected templates (2 members)
- Work-in-progress pages (41 members)