i think the hardest world is the lion king anda think

I think istana, castle that never was is the hardest and even the tron world

In the first game the stupid under the sea one, I hated that place!!

dude i think that olympus wuz hard thanks to Demyx it took me 5 trys to beat him lolololololol!!!!!!!!!!!!!!!!!!11111!!!!!!!!!!!!1111111!!!!!!!!!!!!!!!!!!!!!!!!111111111one one

I think, none of the worlds were hard, I beat them all :)