What to know
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The mysterious puzzle in Dynamic Duo is built around observation, character swapping, and rebuilding nearby LEGO elements.
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The objective is less about combat and more about reading the room correctly before interacting with the main puzzle point.
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Most failed attempts happen when players try the final mechanism too early instead of clearing every side interaction first.
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Finishing the puzzle opens the path forward and keeps the chapter moving toward the next major story beat.
The mysterious puzzle in Dynamic Duo works like a classic story-gated LEGO Batman sequence in LEGO Batman: Legacy of the Dark Knight. It slows the pace just enough to make you examine the area, use both heroes properly, and trigger the next part of the mission without turning the section into a long detour.
Solve the mysterious puzzle details
Where this puzzle fits in Dynamic Duo
Dynamic Duo is one of the early story sections that pushes teamwork and puzzle solving alongside the usual action.

The mysterious puzzle feels designed to teach or reinforce a simple rule that shows up often in this game: if the central mechanism does not react yet, the answer is usually somewhere nearby in the environment rather than in a hidden combat trigger.

How to solve the mysterious puzzle
Move to the mysterious puzzle box. Interact with the slider next to it.

Move it to the right.

Until the bottom row symbol is a Pi symbol.

Go to the right to the trash bin behind a pillar. Use your grapple on it.

Then tie it to object on the ceiling. This will make the trash bin fly off.

Use the slider behind the trash bin.

Move it to change the first symbol on the puzzle box.

Go back and find a container hung by a rope.

Use your bataran on it to crash it.

From the debris, pick up a lever piece.

Use it on the gear at the bottom of a nearby pillar.

Move it to change the middle row on the puzzle box.

Finally, press the button under the puzzle box.

This will open the cage next to it.

Go to it and collect the Cluemaster Puzzle Box.

Under the Cluemaster Puzzle Box is also a photograph.

Inspect it to progress forward.

Rewards and progression tied to this section

The cleanest way to solve the mysterious puzzle is to find levers and move the symbols on the box, and clear the room methodically, until the puzzle box opens up the cage to the rewards. Once you approach it that way, the section becomes far more readable and usually takes only a few minutes to finish.