Objective 1: Wake Indigo-1
Star Sapphire, Saint Walker, and Indigo-1 are out of the fight. It’s up to you to take out Larfleeze on your own. Don’t worry about Sinestro, he’s busy with Green Lantern for the moment.
The first Batman prop is on the right side of the small arena. Smash it.
Batman Smash Challenge: 1 / 2
Equip Batman with his Sensor Suit and use Detective Mode to scan the area around the statue near Sinestro to reveal the second Batman prop.
Batman Smash Challenge: 2 / 2
Knock Larfleeze around a bit and he retreats to the background. He calls forth some of his goons to do his bidding. Take them out with ground finishers to complete the combat challenge.
With his goons taken out, Larfleeze manifests a giant pig statue and attempts to drop it on you. Avoid it several times and he sets it down. When he does, use Detective Mode to examine the pig to find some hyper strength handles. Have Solomon Grundy pull on them to shatter the pig and reveal some LEGO bricks.
Build these bricks into an alarm clock the wakes Indigo-1.
Objective 2: Wake Saint Walker
Once again, fight Larfleeze until he summons his goons. After taking out the goons, he manifests the giant cow statue again and attempts to crush you with it. When he places the cow statue down, use Detective Mode to find a silver LEGO panel.
Destroy the silver LEGO panel using explosives to reveal some LEGO bricks. Build the bricks into a water pump. Jump on the red button to activate it and send a jet of water at Saint Walker to wake him.
Don’t forget to jump into the water where the pump was to claim The Joker Card.
The Joker Card
Objective 3: Make Larfleeze Cross Beams
As before, fight Larfleeze and his goons. This time, instead of manifesting the giant cow to smash you, he fires his energy beam at you. Lure his aim to cross paths with the energy beams of the other lanterns to join their power and end the level.