The Dimensional Portal appears on the Find Snaptooth and take him out mission from DJ Zero. This mission was initially given to both heroes and villains during the Valentine's Day Event 2006 and Valentine's Day Event 2007. It belongs to the <DJ Zero> faction and cons as an Elite Boss.
One of DJ Zero's Dimensional Portals, who knows what fun and happening place it leads to? You will need to protect this Dimensional Portal from Snaptooth.