In Kingdom Hearts III, Avatar Shift is a mobility ability exclusive to the Mirage Staff Formchange. When in combat, pressing while tilting allows Sora to spawn an ethereal copy of himself. Four copies of Sora can be active at a time, and dodging after four copies are active will cause the earliest spawned to disappear. No matter what world he is in, the copies will all be of Sora's normal human form.
Learning Avatar Shift
Kingdom Hearts III