There are a row of blue blocks on the other side. Then, turn left again into what appears to be a dead end. Starting at Leap Of Faith, go straight over the invisible floor, continue straight, then turn left at the first intersection - watch out for the floor trap. The yellow gun adds block moving functions, and can be used to create elevators on-demand.

Enter the foyer, and collect the single green block to open the door, then proceed to the yellow gun. Re-collect the blocks again, and proceed to the locked door, using the blocks to access the next room.

Stand over the red room after the mechanical elevator is influenced by the large box structure in the puzzle, then shoot below your feet to elevate into it. The Butterfly Effect is guarded with a yellow emancipator section and glass partitions, but they do not go all the way up the ceiling, nor is a pink emancipator before it - so you can dispense the blocks over these partitions, then re-collect them on the other side. The invisible stairs will no longer prevent you from falling, which will allow you to land on it and proceed into The Butterfly Effect. Once at least twenty blocks are collected, jump while over the inertia elevator. There is a trap door, with invisible stairs covering it, which leads to a respawning barricade of green blocks. After getting the green gun, return to Stairway To Heaven to gather green blocks.

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