The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Main page templates (10 members)
- Maintenance (8 members)
- Mobile Suit Gundam EXTREME VS. Maxi Boost ON (16 members)
- Modules that add a tracking category (1 member)
- Pages using TabberTransclude parser tag (1 member)
- Pages using Tabber parser tag (656 members)
- Pages using duplicate arguments in template calls (7 members)
- Pages with broken file links (485 members)
- Pages with script errors (3 members)
- Persona 4: Arena (41 members)
- Persona 4 Arena/Characters (22 members)
- Stubs (392 members)
- Templates imported from Wikipedia (14 members)
- Templates with bad documentation (0 members)
- Templates with no documentation (0 members)
- Typing-aid templates (6 members)
- Under Night In-Birth (1 member)
- Under Night In-Birth/Characters (12 members)
- Unga (20 members)
- Verification Needed (226 members)