Final Form is a Drive Form which appears in Kingdom Hearts II and Kingdom Hearts II Final Mix. It uses both of Sora's party members, and consumes five of Sora's Drive Bars. It represents Sora's completion, and can be unlocked after Sora and Roxas come to terms at the Dive to the Heart.
Final Form is unlocked rather unusually. It is obtained randomly after Sora's fight with Roxas at The World That Never Was while attempting to activate another Drive Form. After it is obtained the first time, it may be activated normally. Final Form uses 5 drive bars, being the most costly Drive Form.
When in Final Form, Sora constantly hovers above the ground. Similar to Sora's Valor Form and Master Form, his Final Form wields two Keyblades, though, unlike other forms, these Keyblades float behind him, while he manipulates them through telekinesis. The Keyblades will strike when Sora jumps or glides as well, making most of his actions effectively attacks.
Though turning into Final Form is completely random at first, once obtained it may be used like any other form. His combos unleash numerous blows as the Keyblades spin and twirl, dealing "grinding" damage. Final Form appears to combine elements from each of his other forms. It possesses the sheer power of Valor Form, the magical prowess of Wisdom Form, the large area-effective moves of Master Form, and the rapid-speed, extremely long combos of Anti Form, as well as the dual wield feature of Valor and Master form. It does, however, lack the long-range advantages of Wisdom Form.
While in this form, Sora displays much more skill than in the others, as well. The Keyblades act as though they have minds of their own; Sora effortlessly sends them slicing into enemies with a flick of his wrist, and launches into long combos, engulfed in energy, that pierce right through enemies' defenses. Such power does not come without a cost, though; not only is this form extremely difficult to level up, but due to its long combos, his attacks cause his Drive Gauge to empty extraordinarily fast. [Source: wikia]
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