The Sega titles have been officially rated by the ESRB.
Shinobi and Sonic Triple Trouble have been rated by the ESRB for release on 3DS as Sega Game Gear Virtual Console titles.
The release marks the first instance of Game Gear titles releasing for the service, a feature announced by Nintendo at the 2011 Game Developers Conference along with TurboGrafx 16 titles. Triple Trouble is, outside of PC and GameCube re-releases, the only exclusive Game Gear Sonic the Hedgehog game. Likewise, this iteration of Shinobi (sometimes referred to as The G.G. Shinobi) is known as the first game in the series specifically developed for a handheld.
As of right now, no release date has been announced.