It is my belief that sequels have a tendency to ruin games, but there are some exceptions. But even in those exceptions theres usually major turn-off points (*AHEM* Bethesda and STILL not including dual wielding).
But I actually thought that this game was a lot better than the first. Story-line was right about on par, final scenes are (d)ucking weird (look at it from Ezio's perspective).
But the inclusion of two hidden blades makes for some very fun aerial assassinations, some very gruesome counter kills and combo kills, the inclusion of assassin's robes that can be dyed, ARMOR, different weapons (I got the scimitar, just 'cause I'm a Drizzt Do'Urden dork), money and a boat load of more interesting extras.
Very fun game.
Very fun.
I'm still working on unlocking all of the "The Truth," files, but it looks really odd.
Some of the other weapons (smoke bombs, pistols, and although not a weapon, Medicine!)
9/10
Honestly.

