The Red Brick in “Knight at the Museum” is in the planetarium after Firefly escapes through the SPACE door; turn right and solve the Mars projection puzzle to open the globe and collect the Fire Breather Red Brick in LEGO Batman: Legacy of the Dark Knight.
Red Brick at Knight at the Museum
How to get the Red Brick
Step 1: Reach the SPACE door
Progress through Knight at the Museum until you arrive at the door labeled SPACE.
The Red Brick is not on the main route, so do not go straight through the next objective marker.
Step 2: Turn right into the planetarium
From the SPACE door, head right into the planetarium room. This is the hidden side area with a large globe in the center and planet displays around the walls.
Step 3: Set every projector to Mars
Interact with the room’s planet projectors and change all four lights/projections so they point to Mars.
The key detail is that Mars is the red planet display with the gold border.
Step 4: Open the globe and claim the brick
Once all four projections are set correctly, the central globe opens and reveals the Fire Breather Modifier Red Brick.
Collect it to unlock the modifier.
What to watch for
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If the globe does not open, one or more projectors is still set to the wrong planet.
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If you follow the mission marker instead of turning right, you will miss the hidden room.
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The brick is mission-locked to this puzzle area, so make sure you solve it before pushing ahead too far.
The Knight at the Museum Red Brick is one of the easiest collectibles to miss because it sits off the main path, but the solution is simple once you know to turn right at the SPACE door and match every projection to Mars.
