Squidman's Piststop is the main headquarters of the Black Hole Gang, where they are known to meet most for briefings and meetings, being invaded by the Space Police, and defended by the gang and Squidman. It is located within the Keytoid Asteroid Belt, though far away from Galaxy City.
In Space Police Log 5: A Skull Twin Surprise, the Skull Twins and the Spike Hunter as a base to fire their laser towards Galaxy City. Their plain failed, as Officer "Red Hair" shot a blast at the Spike Hunter's heel in the Undercover Cruiser. The laser was shut down, and the Skull Twins escaped.