Nano Counter (ナノカウンター Nano Kauntā) is an ability in Kingdom Hearts III. It allows the user to counterattack after a successful reprisal by sending a burst of nano projectiles in all directions.
Mechanics
In Kingdom Hearts III, Nano Counter is an action ability exclusive to the Nano Arms Formchange. It is activated by pressing 
after a successful reprisal.
Learning Nano Counter
Kingdom Hearts III
- Nano Arms has Nano Counter as a default ability.