Objective 1: Defeat Atrocitus
That fiend Atrocitus is a powerhouse, so avoid his punches at all cost. Wait for him to finish his flurry of punches and he tries to ground smash you. When he does, he is left stunned. Take the opportunity to deliver some combos of your own on him.
Have Wonder Woman fly to the upper floor of the level. Against the back wall to the right, you find a Joker prop. The second prop is in the far right corner near the front of the level.
The Joker Smash Challenge: 2 / 3
Next to the second prop, there is a wall of ice. Use the laser from Batman’s Space Suit to melt it and reveal the Red Brick.
Red Brick
The third Joker prop is to the on the upper floor and to the left. You find it near Green Lantern.
The Joker Smash Challenge: 3 / 3
Next to Star Sapphire, you find a blue crystal ice pillar. Smash it to reveal The Joker Card.
The Joker Card
After inflicting some damage on Atrocitus, he summons his goons to fight you. Take them out!
When his goons are defeated, Atrocitus manifests a giant hammer to smash you with. Stay out of the weapons’ shadow to avoid being crushed. After he gives up trying to crush you, the beast tries to ram you. Lure him into crashing into one of the spiky LEGO panels that are on the walls of the arena.
Atrocitus crashes into the spiky wall, but he still has some fight in him. Attack him again until he summons his goons. Defeat them and once again avoid being crushed by his hammer. Atrocitus didn’t learn the first time and tries to ram you again as well. Send him careening into another spiky wall.
The next time that you manage to avoid his hammer attacks, he flees to the left, where the lanterns are gathered. Before taking up chase, equip Robin with his Hazard Suit and pick up the Attract pieces that have fallen to the ground. Place them into the Attract Station to build an elevator. Step onto the elevator to end the level.
