Activision has never officially released Black Ops 2 for Android. Any working version is either a fan-made port (using the Exagear/Winlator emulator) or a modified/custom build. The closest official mobile title is Call of Duty: Mobile (which includes some BO2 maps but not the full campaign or Zombies mode).

There is no official mobile game developed for Android. While many websites claim to offer "APK + OBB" downloads for this specific title, these are typically unofficial fan-made projects, guide apps, or older mobile titles like Call of Duty: Strike Team and Black Ops Zombies that users sometimes mislabel.

The idea of playing Call of Duty: Black Ops 2 on an Android device is incredibly appealing for several reasons:

For a true offline "console-to-mobile" experience, players use specialized emulators rather than a native APK: