The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- A-Class (41 members)
- Abilities (36 members)
- Accel Images (0 members)
- Agoni Images (3 members)
- Air Images (2 members)
- Alien Conquerors Arc Chapters (8 members)
- Alien Conquerors Arc Fights (6 members)
- Alien Seer Images (0 members)
- Aliens (10 members)
- Alive (239 members)
- All Back-Man Fights (1 member)
- All Back-Man Images (0 members)
- Amahare Fights (1 member)
- Amahare Images (2 members)
- Ammo Bullet Images (0 members)
- Ancient King Fights (1 member)
- Ancient King Images (6 members)
- Angry Man Images (1 member)
- Animals (5 members)
- Anime (9 members)
- Anime Only Characters (25 members)
- Anime Original (1 member)
- Anime Original Fights (3 members)
- Anti-Heroes (10 members)
- Anti-Villains (7 members)
- Apollo Fights (1 member)
- Apollo Images (13 members)
- Appearance templates (17 members)
- Arcs (23 members)
- Armored Chief Clerk Images (0 members)
- Armored Gorilla Fights (1 member)
- Armored Gorilla Images (8 members)
- Artbook (1 member)
- Article design templates (34 members)
- Article management templates (9 members)
- Article stubs (57 members)
- Articles in need of citations (41 members)
- Articles that need referencing (0 members)
- Articles with missing information (152 members)
- Asami Fights (2 members)
- Asami Images (0 members)
- Atomic Samurai Fights (8 members)
- Atomic Samurai Images (84 members)
- Audiobooks (8 members)
- Autumn Phantom Red Golden-ringed Dragonfly Images (0 members)
- Awakened Cockroach Fights (1 member)
- Awakened Cockroach Images (3 members)
- B-Class (38 members)
- Bad Images (0 members)
- Baked Potato Monga Images (0 members)