October 25, 2011 7:02 am Super Heroes Patrol San Diego's Gaslamp Mr. Extreme and Urban Avenger are part of the Xtreme Justice League, patrolling the Gaslamp on weekends. Nicole Gonzales reports. US & World Videos 0:53 What are those blue blobs piling up on San Diego beaches? Velella velellas! 3:27 Poway Unified superintendent fired following bullying claims 0:35 Blue blobs washing up on San Diego beaches again 2:52 Poway Unified fires superintendent following investigation into bullying claims 0:34 5 people injured after falling from border fence