Mission 5-2: The Weapons Lab

Objective 1: Destroy Brainiac’s Tentacles

From the start of the level, make your way right and head down the stairs. They lead straight to a large door with hyper strength handles. Switch Cyborg to his Big LEGO form and rip the door off of its hinges. Once inside of the room, look for the gold LEGO sections on the tentacles at the back wall. Use a character with the laser ability to destroy the gold LEGO and send the tentacles retreating. This sets down the bridge on the floor above in the process.

Objective 2: Energize the Inactive Terminal

After the tentacles have retreated, climb back up the stairs and cross the bridge where the tentacles once were. Climb another set of stairs and look for the blue magnetic LEGO wall to the right. Equip Cyborg with the Magno Suit and climb the wall.

After you have climbed to the next level, equip Cyborg with the Electricity Suit and draw out power from the electrical terminal you find on the second floor platform. Drop back down to the level below and discharge the electricity into the inactive terminal there. This allows Robin to open the door to your right, letting you continue.

Objective 3: Start up the Machinery

After passing through the door that Robin opened, make your way down the stairs to the right. Equip Batman with his Sensor Suit and approach the green LEGO wall at the back of the platform. Scan the wall as Batman. As another character, turn the two valves to the right to align the gearing within the wall. Turn the spinner paddle that rises up nearby to startup the pistons on the level above. You automatically switch characters at this point, so don’t release the spinner!

Head left and up the stairs to reach the now-functioning pistons. Time your movements to pass beneath them. Once you have done so, Brainiac takes hold of the machinery and halts its movement. Head to the right and you come across some magnetic LEGO gears on the wall. Both The Joker and Cyborg have magnetic abilities, so choose your preferred character then interact with the gears. Don’t forget to smash the nearby Lex Luthor prop as well.

Lex Luthor Smash Challenge: 2 / 3

Aligning the gears has caused the platforms below to align, allowing your stranded character to meet up with you below. So, head to the right of the gear room and use the elevator to meet up with them. Now reunited, make your way to the right and destroy the Lex Luthor prop at the end of the path.

Lex Luthor Smash Challenge: 3 / 3

Use a character with the sonar ability to shatter the LEGO glass of the room on the right. Inside you find the Token for the Flower Suit. Claim it to equip The Joker with the useful ability of mind control.

Unlocked: Flower Suit

Donning the new Flower Suit, have The Joker take control of the guard in the room to the left. With the guard under your control, hack the computer terminal against the back wall. Successfully doing so ends the level.