Objective 1: Build the Bridges
At the start of the level, there is a Lex Luthor prop in the lower left corner.
Lex Luthor Smash Challenge: 1 / 3
Fly up and onto high platform atop the back wall. There is a Lex Luthor prop there to smash.
Lex Luthor Smash Challenge: 2 / 3
Cross the bridge to the right. You come to an open platform with two green LEGO statues. Shatter them both to reveal bricks to build into green lantern pads. Interact with both of the green lantern pads to form bridges across the chasms at the northwest and east sides of the platform.
Objective 2: Open the Right Hand
Cross the newly formed bridge to the east. After crossing the bridge, smash the Lex Luthor prop in the southeast corner of the area.
Lex Luthor Smash Challenge: 3 / 3
On the north end of the platform, there is a vault. Turn the valve to open it. Once inside, smash the treasure and pull on the handle at the back of the vault. The handle activates the nearby elevator. Grab the key that is left behind.
Use the elevator to reach the floor above. Once there, place the key into the gear to the left of the Okaara symbol and use it to reveal some hyper strength handles.
Have Solomon Grundy rip the statue apart with the handles to reveal some bricks that can be built into a shield deflect pad.
Use the shield deflect pad to reflect the beam of light at the colored tiles on the wall. In the center of the four tiles is a color sequence. Follow the sequence from left to right by shining the light onto the tiles in order. This causes the giant statue on the back wall to open one of its hands.
Between the giant statue’s hands The Joker Card is hovering in mid-air. Have a flying character snatch it.
The Joker Card
Objective 3: Open the Left Hand
Head back to the central platform and head to the northwest this time. Jump onto the floating green LEGO platform to guide you.
Once you have crossed over, smash the symbol to find some bricks that you can build into a shield deflect pad. After that, have Solomon Grundy pull on the hyper strength handles along the back wall. Build the bricks that spill out into a mirror to magnify the beam of light.
As with the previous puzzle, use the central lights to discover the order in which the tiles have to be illuminated. This opens the giant statue’s left hand and gold pours out from it. This gold bridges the gap between the central platform and the platform immediately beneath the statue.
Objective 4: Cross the Bridge of Gold
After crossing the bridge of gold from the central platform to the giant statue, smash the totem to find some bricks. Build these bricks into a sphere spot that Green Lantern can use to open the large doors nearby. Pass through the open doors to exit the level.