Pick up the Standards, kill the Bellkeepers to unlock the bell, and return to the normal realm.

The central puzzle mechanic in Duality is the ability to shift between two parallel dimensions. Understanding how they interact is key to survival.

: Move the orbs to the amplifiers behind Zee to create a path to the upper ledges. Wall jump to reach the top and use the Force on the pulley to lift the machinery. Demo Walkthrough - Darling Duality by Melancholy Marionette

: You must coordinate movement across both dimensions simultaneously using “memory echoes.”

Around puzzle 14 (factory level), the walkthrough introduces a mechanic: one character can die temporarily to unlock a gate. The guide says: “Sacrifice Light character on the spike trap → Dark character gains phasing ability for 10 seconds.”