Megahammer in world 3 ( Finel Boss in world 3)
Ozma is the hardest boss in the game
It matters what game you are playing. For example i play Wizard101 and so far the hardest boss to me is Jabberwock.
orcram
The hardest boss is Sigma
No
the dog
you
The Moon Lord
The next hardest boss I'd say is Kolokotos.
the hardest boss in kingdom hearts recoded would either be roxas or sora's heartless in it's last form
Nemesis
rumor honeybottom