Weapons

A Weapon is any object used to inflict damage by either physical or non-physical (i.e. elemental) means. In Kingdom Hearts: Chain of Memories, all characters and enemies wield Cards.

Sora
Sora is the main Keyblade wielder in the series. Sora has a Keyblade, and can attach Keychains to it to change its form, but at certain times he also uses weaker, practice weapons.

Data Sora
Data Sora is the version of Sora that resides inside Jiminy's Journal, he can wield certain weapons that Sora had received in Kingdom Hearts. However at one part within the game, he cannot wield a weapon.

Riku
Riku was the original Keyblade wielder but when he chose the darkness, the Keyblade denied him and chose Sora instead to be the Keyblade wielder.

Kairi
Kairi is Sora and Riku's best friend, she can wield the Keyblade because of Aqua's interception with her in Radiant Garden.

Roxas
As the Nobody of the Keyblade's chosen one, Roxas has the ability to wield the Keyblade. And since another Keyblade wielder is in Sora's heart, Roxas can wield 2 Keyblades. In Virtual Twilight Town, Roxas can choose one of his default Struggle Bat.

Terra
Is one of the main protagonists of Kingdom Hearts Birth By Sleep, Terra has the ability to wield the Keyblade. At certain times he also uses weaker, practice weapons.

Ventus
Is one of the main protagonists of Kingdom Hearts Birth By Sleep, Ventus has the ability to wield the Keyblade. At certain times he also uses weaker, practice weapons.

Aqua
Is one of the main protagonists of Kingdom Hearts Birth by Sleep, Aqua has the ability to wield the Keyblade. In one part of the game, she is able to wield Eraqus's Keyblade, due to being a Keyblade Master.

King Mickey
King of Disney Castle, able to wield a Keyblade under the assistance of Yen Sid.

Unversed

 * Buckle Bruiser - Dual Shields
 * Iron Prisoner II, III, IV - Fire Hammer
 * Mimic Master - Book
 * Symphony Master - Baton

Heartless

 * Defender - Defender (shield)
 * Wizard - Wizard's Relic
 * Bandit - Scimitar
 * Invisible - Notched broadsword
 * Kurt Zisa - Twin shotels
 * Ansem - Dual-Bladed Soul Eater
 * Bookmaster - Akashic Record
 * Shaman - Shaman's Relic
 * Runemaster - Akashic Record+
 * Necromancer - Spell's Relic+
 * Screwdiver - Trident
 * Anti-Sora - Black Kingdom Key
 * Pirate - Scimitar
 * Lance Warrior - Lance/Umbrella
 * Lance Soldier - Lance/Umbrella
 * Luna Bandit - Twin shotels
 * Graveyard - Knife and axe
 * Assault Rider - Lance
 * Grim Reaper - Pendulum
 * Storm Rider - Bombs
 * Volcanic Lord - Staff
 * Blizzard Lord - Staff
 * Dual Blade - Twin blade
 * Heat Saber - Twin blade
 * Chill Ripper - Twin blade
 * Blitz Spear - Twin blade
 * Stalwart Blade - Twin blade
 * Zip Slasher - Twin blade
 * Surveillance Robot - Laser gun
 * Destroyer - Laser gun
 * Guardian - Laser gun
 * Toy Soldier - Gun
 * Gargoyle Warrior - Axe
 * Gargoyle Knight - Sword
 * Orcus - Notched broadsword

Nobodies

 * Dragoon - Nobody Lance
 * Gambler - Cards and Dice
 * Samurai - Swords
 * Berserker - Hammer

Kingdom Hearts

 * Cards of Spades - Card's Axe
 * Cards of Hearts - Card's Lance
 * Clayton - Shotgun
 * Jafar - Magic Staff
 * Captain Hook - Pirate's Rapier
 * Maleficent - Witch's Staff
 * Giant Ursula - Trident
 * Jafar (Genie) - Magic

Kingdom Hearts II

 * Shan Yu - Barbar's Sword
 * Captain Barbossa - Pirate's Gun & Sword
 * Undead Pirate-A - Pirate's Axe
 * Undead Pirate-B - Pich
 * Undead Pirate-C - Pirate's Gun
 * Pete - Exploding balls

Party members

 * Tarzan - Spear
 * Aladdin - Scimitar
 * Peter Pan - Dagger
 * Ariel - Fist & Tail
 * Jack Skellington - Bone Fist
 * Beast - Claws

Final Fantasy characters

 * Tidus - Wooden Pole
 * Selphie - Jump Rope
 * Wakka - Blitzball
 * Leon - Gunblade
 * Yuffie - Shuriken
 * Cloud - Bandaged Buster Sword
 * Sephiroth - Masamune

Party Members

 * Captain Jack Sparrow - Skill and Crossbones
 * Auron - Battlefields of War (Also a Final Fantasy character)
 * Aladdin - Scimitar
 * Simba - Proud Fang
 * Tron - Identity Disk
 * Mulan - Sword of the Ancestor
 * Beast - Beast's Claws
 * Jack Skellington - Bone Fist

Final Fantasy characters

 * Vivi - Struggle Sword
 * Seifer - Struggle Sword
 * Setzer - Struggle Sword
 * Cloud - Bandaged Fusion Sword
 * Leon - Gunblade
 * Yuffie - Shuriken
 * Sephiroth - Masamune

Kingdom Hearts II

 * Genie - Genie's Keyblade
 * Stitch - Laser Guns / Ukulele
 * Peter Pan - Dagger
 * Chicken Little - Slingshot (during FPS mode only)

Other

 * King Triton - Trident
 * Hayner - Struggle Sword