Ace Combat Вђ“ Assault Horizon Legacy Update — V2....

The update you're referring to, commonly known as (or Ace Combat 3D: Cross Rumble + in Japan), is an enhanced re-release of the original 2011 3DS title. It was specifically designed to take advantage of the New Nintendo 3DS hardware. Key Updates & New Content

The "Plus" version (v2.0) maintains the same core story—a remake of Ace Combat 2 set during the 1998 Usean coup d'état—but adds several hardware-specific and cosmetic features: Ace Combat – Assault Horizon Legacy Update v2....

: The update leverages the New 3DS's "Super Stable 3D" head-tracking for a more immersive and less blurry 3D experience. Core Gameplay Guide The update you're referring to, commonly known as