The best thing--Seeing the FF characters,Fighting Sephiroth because I loathe him,...

The worst thing...How Sephiroth did not have ANY part in the original plot unlike Ansem,he was just a secret boss and that actually pissed me off,The Clothes of Sora...Blue,Red,White,and Yellow.............. Fashion sense for Sora was at an all time low,good thing he actually looks good in KH2...