The Underpass Fault in Control Resonant (Full Walkthrough)

The Underpass Fault is the last of Jesse’s three Fault quests in Control Resonant, and it sits in the middle of the game’s most confusing stretch of progression. Dylan gets the objective early, tries to walk toward the vision of Jesse, and hits a wall that no amount of platforming will solve. The quest only becomes completable after another Fault is cleared, and until it is finished, the main story mission The House in Distress stays locked.

Quick answer: Clear The Subway Fault first, fast travel to The Spire, glide to the island of orange pipes, enter the Fault, work through the memory prompts, guide both light-projected children together, then finish Jesse’s ritual.

Why The Underpass Fault soft-blocks during Recursions and Iterations

The quest appears while Dylan is following the research team through the Underpass during Recursions and Iterations. Once you reach the island where both the beacon and the island of orange pipes are visible, a vision of Jesse shows up in the distance and the objective “Investigate the Vision of Jesse on the Island of Orange Pipes” lands in the log.

Chasing it immediately does not work. Zoe tells Dylan the jump cannot be made yet, and the actual fix is a different quest entirely. The Fault chain runs in a fixed order, and the Underpass one is always last.

The Incursion Fault unlocks Shift, which turns walls and rotated surfaces into walkable ground.
The Subway Fault unlocks Reach, used for gravity anomalies.
The Underpass Fault closes the chain and releases The House in Distress.

Clear The Subway Fault in the Evacuation Zone first

This is the detour the game expects. The Board hands Dylan The Subway Fault when he arrives in the Evacuation Zone, and completing it is what makes the Underpass objective solvable.

Head back to the Fast Travel Door in the Underpass, open the map, and travel to Main Street in the Evacuation Zone. Dylan arrives in Evacuation Zone 5 and picks up the new quest on the spot.

Map Navigation — The fast travel menu with Main Street selected under the Evacuation Zone. Shown at 00:48 in Trophy Tom’s video. Image: Remedy Entertainment

Glide down to street level, work through the buildings to the outdoor subway stairs, and break through the turnstile barrier into the tunnels. Spectral trains run the tracks, so duck into the side alcoves and stairwells as they pass.

Traversing Subway Track Tunnel — The train tracks running through the yellow-lit subway tunnel. Shown at 03:19 in Trophy Tom’s video. Image: Remedy Entertainment

Drop into the mold-infested cavern beneath the tracks and clear out the Bloomed Spore Mother and Mold Blights. The route then opens into a huge vertical chasm filled with hanging subway cars; dash down it and fight off the flying enemies on the lower levels.

Reaching Deep Subway Void — The mold-covered tracks opening into the deep subway shaft. Shown at 06:12 in Trophy Tom’s video. Image: Remedy Entertainment

Run up the inclined ramp into the golden portal, speak to Jesse on the floating platform, and take the Reach ability. Flip both television anomalies to reorient gravity, cross the floating islands, and finish the ritual at the cosmic aperture to complete The Subway Fault.

Route from The Spire to the island of orange pipes

Going back through the Underpass on foot wastes a lot of time. Use a Fast Travel Door, open the world map, and pick The Spire under the Underpass listing. Dylan lands on the rooftop platform looking out over the floating monoliths.

Check the Underpass 4 map to confirm the objective marker is sitting on the island of orange pipes, then start gliding across the hovering concrete pillars toward the giant orange conduits.

Map Check — The Underpass 4 map with the objective marker on the island of orange pipes. Shown at 01:51 in Trophy Tom’s video. Image: Remedy Entertainment

Land on the platform holding the golden Fault door partway up and activate it. That registers a new Fast Travel Door right next to the quest area, which saves a full traversal run if you die later.

Map Check at Fault Door — The map confirming the Fast Travel Door has been activated beside the quest area. Shown at 02:31 in Trophy Tom’s video. Image: Remedy Entertainment

Climb along the top of the orange conduits and jump the concrete ledges into the quest zone. Follow the pipes down and drop into the green-tinted, water-flooded cavern below.

The lower trench triggers an ambush of flying tentacled mold creatures backed by a fungal brute. Clearing them drops Fungal Growth and Source, and it opens the blocked path onward.

Sprint through the narrow corridors while Jesse’s voice cuts in over the radio. The corridor ends at a small square dais ringed by enormous curving pipes. Interact there to enter the Fault.

There is a save point near the small entrance on the lower level, so grab it before the mold fight rather than after.

Inside the Fault: every memory interaction in order

The Fault opens on a dark clearing buried in golden autumn leaves, and the objective changes to “Find Jesse and Talk to Her.” Unlike the earlier Faults, this one is built around interaction points rather than combat. White eye icons mark each memory on the monolithic stone faces, and touching them is what moves the quest forward.

Memory prompt	What the projection shows
I remember Mom	Dylan’s mother teaching him to paint
I remember Dad	His father taking him camping and hiking
We were happy	The whole family together
Everything was simple back then	Jesse and Dylan as young children
They didn’t recognize us anymore	The parents’ shadows towering over Dylan
(Family breakdown)	The father’s anger and drinking, the mother shutting herself away
We made a promise	Both children reunited at the Christmas tree

Memory 1: "I remember Mom" — The "I remember Mom" projection on the first monolith, showing his mother at the canvas. Shown at 05:14 in Trophy Tom’s video. Image: Remedy Entertainment

Between the early memories the path is linear. After the third stone face, a golden humanoid silhouette appears and slips through an opening in the monolith; follow it across the floating leaf-covered slabs suspended over the void until you reach the wall showing the two children together.

How to guide the light-projected children

Once the objective flips to “Guide the Light-Projected Children,” the puzzle logic changes. The silhouettes are painted on the walls and only move when Dylan moves across the physical ledges nearby. You are not pushing them directly; you are choosing which route you take so they advance along the surface you want.

When the two glowing silhouettes first appear on the wall, take them to the right.
When the parents’ shadows come into view ahead, do not jump straight toward them — one silhouette is still waiting on the side.
Take the left path instead, bringing the remaining silhouette across to the parents.
Keep the silhouette on screen as you move. Jumping around corners breaks the link and it stops following.

Ascending the upper ledges around the edge of the hall is what triggers the children’s movement in the larger chamber. When both shadows reach the towering parents, the “They didn’t recognize us anymore” interaction unlocks, followed by the projection covering the family’s collapse.

Reunite young Dylan and Jesse in the multi-tier room

Follow the silhouette of young Dylan through the tunnel and the objective updates to “Reunite Young Dylan and Jesse.” This room is the trickiest part of the Fault because both figures have to end up in the same place at the same time.

Guide the first silhouette to the middle of the wall using the ledges directly ahead of you.

Backtrack and take the left path to bring the second silhouette across. This one needs Shift to reach the surfaces that move it along.

With both figures at the center, interact at the central wall. The two children meet in front of a Christmas tree projection and the “We made a promise” memory plays.

Talk to Jesse and complete the ritual

The final stretch is linear again. Walk down the wooded path to find Jesse standing under a street lamp and talk to her. Dylan’s replies here, including “You were just a kid too,” are dialogue flavor and do not gate anything.

The objective becomes “Help Jesse Complete the Ritual.” A projection plays out the night their mother pointed a rifle at them, after which you run along the glowing, leaf-strewn highway toward the eclipse-like rift. On the far side sits an easel with floating artwork and an illuminated CRT television. Interact with Jesse there, work through the dialogue prompts to the end, and the astral projection dissolves.

Rewards and how to confirm the quest is finished

You will know it worked when Jesse fades out and the on-screen banner reads “QUEST COMPLETED: THE UNDERPASS FAULT.” Two reward notifications land at the same time.

Reward or effect	Detail
Before I Leave	Collectible record added to your log
Living Shard	+1
Notes: Jesse Sightings	Completes automatically
The House in Distress	Unblocked and playable

From there, return to the Underpass through The Spire fast travel point and pick Recursions and Iterations back up, starting with the beacon location. If your Quest Log still lists The Underpass Fault as tracked, the ritual dialogue was not carried all the way through, so head back to the easel and finish the conversation.