According to Ubisoft at GamesCom 2009, one of the ways Assassin's Creed 2 has improved over the original game is the addition of a series of "secret missions".

Ubisoft's slow roll out of Assassin's Creed II information continued at Gamescom, with the game's creative director Patrice Desilets highlighting additional ways the sequel has improved. One major addition is a series of "secret missions" that feel Prince of Persia-esque.

Miss Razz via kotaku.com »