Objective 1: Tear Down the Prison Bars
Before going anywhere, smash the Batman prop in the corner of the room.
Batman Smash Challenge: 1 / 3
Smash one of the nearby rocks to find some bricks. Build these bricks into a grapple handle above the nearby green vines. Pull on the handle to tear the vines down.
Use Martian Manhunter’s Detective Mode to investigate the bars that were hidden by the vines. Doing so reveals magnetic LEGO on the bars. Equip Cyborg with his Magno Suit and rip the bars wide open.
Objective 2: Clear the Cobwebs
Head through the broken bars and continue to the right. Cross the chasm using Martian Manhunter. Once on the other side, continue to the right and be ready to fight some goons. Once you’ve defeated the goons, smash the rocks near the cobwebs and build the bricks that spill out into a fly.
After the fly is caught in the web, a spider creeps out to get it. Use Detective Mode to locate the gold LEGO piece on the spider. When you do, destroy the gold LEGO to clear the cobwebs.
Objective 3: Open the Gate
Clearing the cobwebs allows you to access a computer terminal against the back wall. Hack into the computer to extend a bridge that crosses the chasm to the left. Now your friends can join you.
Continue moving right along the path. Just around the corner is a silver LEGO wall with a valve on each side. Equip Cyborg with his Demolition Suit and destroy the silver LEGO. Destroying the silver LEGO reveals a green LEGO wall. Have Martian Manhunter peer into the wall while a partner turns each of the valves. Doing so opens a gate to the right.
Objective 4: Confront the Indigo Tribe
With the gate open, continue along the path until you are confronted by Indigo-1 and her guards. Fight off the guards. Once the guards have been defeated, have Cyborg destroy the silver LEGO spire on the right side of the prison cells. Build the bricks that spill out into a spinner switch.
Don’t forget to smash the Batman prop near the gate through which you entered the area.
Batman Smash Challenge: 3 / 3
Spin the spinner switch to raise a statue in the center of the area. Jump onto the red switch that is near it. The statue opens the cells. Pay attention to the order in which the statue opens them.
With the cells open, a little puzzle follows. Step through the open cells in the same order in which the statue opened them. Successfully doing so opens the center cell and ends the level. If you pass through the wrong cell, you must press the red switch again.