Photo Archives News Channels Special Features Forums Contact About Privacy Photo Archive: The Black Hole - Sentry Robot Posted by Curto on October 3, 2008 at 05:00 PM CST: CTR's Flashback Friday feature continues to shine the spotlight onto the classic The Black Hole toy line by Mego. Every empire needs some troopers, right? Here's the Sentry Robot, part of a team that patrols the Cygnus.