Chapter 1: Pursuers in the Sewers
When you reach the last ledge of the opening area, switch to Plastic Man and fly to the upper level. Use his pad here to retrieve the Red Brick from the other side of the glass.
Chapter 2: Breaking BATS!
At the start of the level, turn left to find a sensor spot. Use a sensory character to spot a Plastic Man pad, then switch to him and use the pad. He'll turn into a crane and retrieve a Red Brick from below.
Chapter 3: Space suits you, Sir!
When you reach the hangar, head to the right ledge and pull the switch to make the crashed ship spit out some loose bricks. Build these into a Plastic Man pad, then use him to retrieve the Red Brick.
Chapter 4: Space Station Infestation
During the Joker fight, switch to Plastic Man and slip through the vent on the left side of the main platform. On the other end, walk around the walkway and use a stealth character to pass the security camera. Flip the switch to shut it down, then switch to Plastic Man again to cut your way through a window to the Red Brick.
Chapter 5: The Big Grapple
When facing the second set of tentacles, bust up the sets of red and yellow canisters nearby for some loose bricks. Build these into a Plastic Man pad, then use him to retrieve the Red Brick from off screen.
Chapter 6: The Lantern Menace
Right at the start of the level is a magnetic pole. Use a magnet character to shake it loose, creating some loose bricks. Build these into a Plastic Man pad, then use him to bust up another object for more loose bricks. Build these into a pump, then hop on the handle a few times to create the Red Brick.
Chapter 7: Europe Against It
Just past the electrified phone booth is a gold panel on the side of a building. Use a laser character to melt this away and create some loose bricks. Build these into a Plastic Man pad, then use him to put out the nearby fire and win the Red Brick.
Chapter 8: Big Trouble in Little Gotham
During the final fight with Brainiac, look to the far right side of the area for a patch of dirt. Use a digging character to uncover some loose bricks, then build these into a Plastic Man pad. Use him to destroy a nearby building and reveal the Red Brick.
Chapter 9: Power of Love
In the final zone, fly all the way up to the lantern proper to find a swamp. Hop in with Solomon Grundy to pull out a Plastic Man pad. Use him on it to uncover the Red Brick.
Chapter 10: A Blue Hope
Near the trapped Saint Walker is a purple boulder. Shrink it with Brainiac to reveal a Plastic Man pad, then use him to uncover a glass case. Use a sonar character to break through this and retrieve the Red Brick inside.
Chapter 11: Jailhouse Nok
At the centre north of the boss arena is some debris cover a Plastic Man pad. Clear this, then use him on the pad to reveal the Red Brick. Fly around the force field to grab it from the background.
Chapter 12: All the Rage
At the start of the second zone is a tech panel. Use a tech character on it to release some loose bricks you can build into a Plastic Man pad. Do this and use him to uncover a silver boulder, then shoot this with a demolition character to reveal the Red Brick.
Chapter 13: Need for Greed
When you reach the second zone, head to the ledge on the back right. Use a demolition character to blow up the silver gate here to reveal a Plastic Man pad. Use him to make the Red Brick appear, then fly up and grab it.
Chapter 14: Aw-Qward Situation
At the final confrontation with Sinestro's forces, there's a Plastic Man pad. Use him on it to retrieve the Red Brick.
Chapter 15: Breaking the Ice
All collectibles in this level are found in a secret area. To get there, use a laser character to melt the ice around a Lantern pad on the right side of the area. Use a Lantern character to chip out the first minikit and reveal a vent, then slip through with Plastic Man.
In the middle of the room is a Plastic Man pad - you can't miss it. Hop on with him and use his powers to reveal the Red Brick.
Bonus: Same Bat-time! Same Bat-channel!
Inside the diner, the bottom table on the top floor is actually a Plastic Man pad. Bash it down, then use the stretchy hero to spawn the Red Brick.
