The Combat
Kingdom Hearts III’s battle system takes cues from several previous iterations of the franchise, combining the real-time combat from the first two games with the Flowmotion of Kingdom Hearts 3D to make Sora more active and mobile than ever before. One prevalent evolution of Flowmotion is the new Attraction Flow, where Sora calls upon the power of assorted Disney theme park rides and attractions to aid him.
Confirmed rides so far are the Pirate Ship, Big Magic Mountain, and Mad Hatter’s Tea Cup Ride. Similar to summons like Genie and Mushu in past titles, the Attraction Flow rides will be fully controllable by the player. For example, you control the path the Big Magic Mountain train will follow, and you direct the Mad Hatter’s Tea Cups to whichever specific enemies you want to target.
Another new addition is keyblade transformations. During the E3 2015 trailer we see Sora wielding a couple different keyblades, and both transform into different special weapons. In fact each and every keyblade you obtain throughout Kingdom Hearts III will have a unique transformation. The first we see in the trailer changes into dual pistols followed by a cannon gun, while the second grew to a massive size then took the form of Pegasus from the film Hercules, pulling the keyblade-chariot that Sora then rode in. It all sounds quite complicated when written out, so check out these gifs.