Here is a list of Heartless and their stats:
Air Pirate- A flying Heartless that resides in the Pirate ship region of Neverland. They attack with dive bombs and punch attacks.
HP: 25
MP: 10
Attacks:
Dive Bomb - 15 damage (First part of the attack they fly up and can't get attacked, Second turn they attack dealing the damage)
Punch - 5 damage (Straightforward, they Punch you)
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Air Soldier- A flying Heartless that appears in Traverse Town and some of the earlier worlds. They attack with high-flying kicks.
HP: 15
MP: 5
Attacks:
Overhead Punch - 10 damage
Drop Kick - 5 damage
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Angel Star- A slightly divine Heartless that appears in The End of the World. They attack with various magical attacks.
HP: 100
MP: 70
Attacks:
Wing Guard (Blocks attacks for 2 posts)
Wing Blast - 15 damage (5 per blast)
Wing Cyclone - 15 damage (unavoidable, chance to attack when they first use it)
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Aqua Tank- A large fish-like Heartless that appears only in Atlantica. It is usually coupled with 2-3 Screwdriver Heartless. It becomes temporarily invulnerable when hit by lightning attacks and attacks with a charge attack.
HP: 60
MP: 30
Attacks:
Charge: 10 damage (unavoidable)
Thunder Guard (Becomes invulnerable when struck with electric attacks for 2 posts)
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Bandit- A quick Heartless that appears in Agrabah. They attack with a curved sword and a spinning attack.
HP: 20
MP: 10
Attacks:
Sword Guard (Blocks attacks for 2 posts)
Slash- 10 damage
Spin Slash- 10 damage per hit (Can be interrupted if a dice roll is even)
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Barrel Spider- A Heartless that hides inside a barrel on Captain Hook's pirate ship. They become active when approached and explode on contact.
HP: 10
MP: 0
Attacks:
Kamikaze- 30 damage (Can attack while they prepare for it)
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Battleship- A Heartless that has fused with a pirate ship. It appears on Captain Hook's pirate ship. They attack with cannonballs and homing missiles.
HP: 150
MP: 80
Attacks:
Frontside Charge- 30 damage (Can be dodged with an even dice roll)
Homing Missile- 25 damage (Can be dodge with an even dice roll)
Cannonball Drop- 20 damage per hit (First part they fly up and can't attack, second they do damage, can be dodge with an even dice roll)
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Behemoth- A giant bull-like Heartless. It attacks with stomps and an energy attack with its horn.
HP: 900
MP: 150
Attacks:
Stomp- 25 damage
Bull Charge- 30 damage (Can be dodged with an even dice roll)
Horn Burst- 45 damage (Can be dodged with an even dice roll)
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Black Fungus- A stronger version and fiercer version of the White Mushroom Heartless. It attacks with poison and turns stone to become temporarily invulnerable.
HP: 10
MP: 0
Attacks:
Stone Body (Invulnerable for 2 posts)
Acid Mist- 10 damage plus Burned for 3 posts (5 HP per post)
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Blue Rhapsody- A bell-shaped Heartless that attacks with Blizzard.
HP: 10
MP: 50
Attacks:
Chill Whip- 5 damage
Blizzard- 10 damage
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Bouncywild- A nimble monkey-like Heartless that bounces and runs around wildly. It attacks by dropping banana peels and using a slingshot from afar.
HP: 10
MP: 0
Attacks:
Banana Peel (50 munny if an even dice roll)
Sling Shot- 10 damage (Can be dodged with an even dice roll)
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Creeper Plant- A plant-like Heartless that can sprout up from anywhere in the ground. It attacks by using its roots.
HP: 20
MP: 10
Attacks:
Roots- 10 damage
Hideaway (Invulnerable for 2 posts)
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Crescendo- A hopping horn-like Heartless that does very little attacking.
HP: 10
MP: 0
Attacks:
Sound Blast- 5 damage
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Darkball- An eerie Heartless that moves erratically to attack.
HP: 25
MP: 15
Attacks:
Bite Charge- 10 damage
Ricochet (Reflects damage back at attacker)
Mist (Invulnerable for 2 posts)
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Darkside- A large Heartless that first appeared in Sora's dream. It attacks with punches and an energy attack from its chest.
HP: 750
MP: 300
Attacks:
Dark Punch- 20 damage (Summons 4 Shadow Heartless)
Dark Heart- 10 damage per hit (Can be dodged with even dice roll)
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Defender- A large Heartless that uses a living shield. The shield attacks with either a Blizzard, Fire, or bite attack, while the user uses a spin attack.
HP: 90
MP: 70
Attacks:
Fire- 15 damage
Blizzard- 15 damage
Shield Bite- 10 damage
Shield Spin- 15 damage
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Fat Bandit- A large Heartless that appears in Agrabah. It attacks by throwing its weight around and breathing fire.
HP: 90
MP: 60
Attacks:
Belly Block (Blocks attacks for 2 posts)
Fireball- 15 damage (Can be reflected back with even dice roll)
Fire Breath- 10 damage plus Burned for 2 posts (5 additional damage per post)
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Gargoyle- A dark Heartless that appears in Halloween Town. It attacks with dive bombs and a breath attack.
HP: 20
MP: 10
Attacks:
Claw Slash- 5 damage
Dark Breath- 10 damage (Can be interrupted with even dice roll)
Fade away (Invulnerable for 2 posts)
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Green Requiem- A bell-like Heartless that casts Cure on any surrounding Heartless.
HP: 10 HP
MP: 70 HP
Attacks:
Cure (Heals half of targeted Heartless' HP)
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Invisible- A demonic Heartless that appears in The End of the World. It attacks with a large sword and a dark spell.
HP: 150
MP: 80
Attacks:
Sword Slash- 20 damage
Tail Whip- 15 damage
Sword Charge- 15 damage
Sword's Curse- 30 damage (Invulnerable for 1 post, can be dodged with even dice roll)