Reverse Rotation is a puzzle in Professor Layton and the Unwound Future. The puzzle must be solved in order to progress the story.


A system of gears is shown below. Gear A turns in the direction of its red arrow, which currently causes gear B to turn in the direction of its red arrow.

One group of gears connecting gears A and B is labeled a. This group can be moved and rotated with your stylus, along with groups b and c below it.

Utilize these groups to alter the system so that gear B turns in the direction of its green arrow. You don't necessarily need to use all of the groups, however.


Click a Tab to reveal the Hint.

The gears can't function properly if they're overlapping, so don't bother trying to stack any of them.

If you link an odd number of gears between two main gears, the two main gears will rotate in the same direction.

Conversely, an even number of gears linked between two main gears will cause two main gears to rotate in the opposite direction.

There are a lot of gears to count in this puzzle, but try adding them up!

You don't need to use gear group a. Try working groups b and c into the system.

Place gear group c into group a's original slot. Then rotate group b 180 degrees, and place it...somewhere.



Too bad!

And you're running out of time! Hurry!


US Version


You've reversed the energy flow in the generator!

UK Version


You've reversed the power to the fortress!


A big thanks to

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