The battle system of KH2 is built around the original model, but it contains many differences. The actual configuration of the controls are uncofirmed but here are a few main features of the new battle system.
-It will be a "hack-n-slash" system.
-The ability to wall jump has been added.
-There will be the traditional R1 targeting system.
-A new "drive" feature had been added.
-You can merge with any ally to form a more powerful being. At this point, Sora weilds two keyblades such as in brave mode.