Hardest Kingdom Hearts Bosses

The Top Ten

1 Sephiroth Sephiroth is a fictional character and main antagonist in the role-playing video game Final Fantasy VII developed by Square.

I think Lingering Will (Terra's Haunted Armor) is harder than Sephiroth in Kingdom Hearts series because he's the strongest Secret Boss in Kingdom Hearts series. - AldoFitrian

If you can beat him, then you are more than ready to fight the final boss.

2 Shadow Sora
3 Ice Titan
4 Ansem
5 Cerberus

They look great and aggression is magnified

6 Maleficent

Really! She is eays all you need is Tinkerbell and the spell argo

She’s extremely hard as a dragon. It took me 3 hours trying to get rid of her as a dragon. - asantalo

7 Lingering Will

Haunted Armor in Kingdom Hearts 2 is the hardest boss in Kingdom Hearts series. The stats will be HP: Over 1000 (Over 10 HP bars). Attack:? Defense:?. - AldoFitrian

8 Darkside
9 Jafar

Fighting too many times just made me sick. - asantalo

10 Chernabog Chernabog is a Disney villain from the 1940s film Fantasia, and in his segment, "A Night on Bald Mountain".

He’s my favorite, but he’s too hard in the first Kingdom Hearts. Cause all you do is flying around without blocking yourself. It’s harder than Ursula’s fight when she’s a giant. - asantalo

The Contenders

11 Ursula Ursula is a fictional character who appears in Walt Disney Pictures' 28th animated feature film The Little Mermaid.
12 The Phantom
13 Young Xehanort
14 Hades
15 Scar
16 Xemnas
17 Julius
18 Keyblade Armor

Terra's Haunted Armor has Over 1000 HP (Over 10 HP bars in Kingom Hearts 2 Final Mix). - AldoFitrian

19 Vanitas Remnant
20 Marluxia
21 Dark Hide
22 Organization XIII Replica Data
23 Yozora
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