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How to get back up the Volt Forge in Metroid Prime 4 Beyond

Guides
By Joel Franey published 4 December 2025

The ascent up the Volt Forge Tower 1, or Assembly Floor, in Metroid Prime 4 is harder than the descent

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The Volt Forge is powered by a lightning rod in Metroid Prime 4
(Image credit: Nintendo)
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Volt Forge in Metroid Prime 4 Beyond is the first proper challenge of the game, specifically the challenge of getting back up Tower 1, also known as the Assembly Floor, after turning on the power with the lightning rod, and thus setting the entire factory into motion. Now there's working machinery, electrical currents, and new threats to handle as you make your way back up to the fabrication point where the finished Vi-O-La motorbikes are being sent. Below I'll take you through a full walkthrough, explaining all the puzzles and challenges you'll explore as you make your way up the Volt Forge factory in Tower 1.

Volt Forge Tower 1 walkthrough and puzzles explained

A map of the Metroid Prime 4 Volt Forge Tower 1

(Image credit: Nintendo)

Below are all the Volt Forge Tower 1 puzzles in Metroid Prime 4 Beyond in order, with further details on each major section in the Assembly Floor below.

  1. After activating the lightning rod, roll through the tunnel back, using the side cages to avoid the periodic pulses of electricity.
  2. Platform between the safe zones to avoid the exposed current.
  3. Scan and interact with the computer to start the factory, then roll into a Morph Ball and let the fabricator that manufacturers the bike's wheels lift you up.
  4. After ascending the escalator, fight off the Maintenance Tank droids. Then in Morph Ball mode, create a levitating Bomb, then use your psychic abilities to throw it at the wall socket. This will open the pipe, which you can roll into, letting the machine move you to the next room.
  5. Lasers will block off the path ahead, but machinery moving through them will block their beams past a certain point, giving you quick windows to move through.
  6. Use the rising platforms to make it to the top of the room. They'll periodically pause and become electrified, so jump to the balconies at each stopping point.
  7. Interact with the central terminal to get the Vi-O-La suit, which will allow you to collect the bike just past it!

1. Lightning Rod tunnel

The arm connecting the lightning rod to the Volt Forge in Metroid Prime 4

(Image credit: Nintendo)

The first section is relatively straightforward – the tunnel back to the tower from the lightning rod now has periodic bolts of electricity running through it. To survive, you need to roll through as fast as possible and use the cages on either side as safe zones to let the electricity pass through. You're not fast enough to skip any of these cages – make sure you use them.

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2. The broken electrical circuit

Samus navigates a broken electrical conduit in the Metroid Prime 4 Volt Forge

(Image credit: Nintendo)

Another simple sequence, platforming between three safe risen areas while periodic currents run through the floor joining them. Time your dashes forward, and remember you can flick the controller to jump while in Morph Ball mode – you don't have to use a bomb.

3. The Assembly Floor and Fabricators

A fabricator scans Samus in Morph Ball mode in the Metroid Prime 4 Volt Forge

(Image credit: Nintendo)

Back in the main tower, scan and then interact with the central terminal to start the fabricators around you. Above each one is a hologram that shows what part of the bikes that they're building.

Look for the one that's constructing the wheels, turn into a Morph Ball, and roll into the space in the middle. The claw should lift Samus up, scan her, turn green, and deposit her in a tunnel where she can progress by rolling to the left. If the scanner turns red and drops her, you're in the wrong Fabricator.

4. Main scanner

Samus prepares to trigger the Assembly Floor with a Psychic Bomb in the Metroid Prime 4 Volt Forge

(Image credit: Nintendo)

After going up an elevator, you'll need to fight off some new enemies – Maintenance Tanks. These are simple but tough enemies that fire projectiles and roll around. You can avoid their attacks by dashing to the side, and do a lot of damage with missile attacks.

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After that, turn into a Morph Ball and hold A to create and levitate a Psychic Bomb. Then return to human mode, turn on your visor, and focus on the Bomb to bring it to your hand. Finally, throw it at the scanner shown above – this will open a maintenance pipe, which you simply need to roll into. You'll be put in front of another scanner, which doesn't like what it sees and throws you into a new room full of junk.

5. Laser Grids

Laser grids are blocked by a piece of a bike in the Metroid Prime 4 Volt Forge

(Image credit: Nintendo)

This curving corridor has multiple laser grids blocking it off, but pieces of manufactured bikes are moving through, and the lasers stop when they hit them, leaving windows of safety to move through. Basically, you use the bike parts as shields, but because they're different shapes and lasers come from different angles, you need to progress in the following order:

  1. To the right of the bike piece
  2. To the left of the bike piece
  3. Underneath the bike piece (in Morph Ball mode)
  4. Jumping over the bike piece

You don't have long to do this, so make sure you're moving quickly the moment the lasers are blocked off.

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6. Rising Electrified Platforms

Electrified platforms rise up Tower 1 of the Metroid Prime 4 Volt Forge

(Image credit: Nintendo)

In this central tower room, you'll need to jump onto any of the four platforms that rise up around the pillar in the centre. However, these platforms periodically stop and become electrified, doing damage to any who stand on them. In those moments, you need to jump across them to the static balconies at each stopping point, wait for the electricity to pass, then jump back on. The balconies are at different positions as you ascend, so make sure you're looking up to be as close to them as possible.

7. The entrance and the Vi-O-La bike

Samus unlocks the Vi-O-La suit in the Metroid Prime 4 Volt Forge

(Image credit: Nintendo)

One more elevator ride takes you back to the entrance, where the tower connects with the road. Now that the power is on, interact with the central computer to get the Vi-O-La suit, which lets you operate and drive the Metroid Prime 4 bike just past it!

You haven't officially got this vehicle unlocked for the full game yet, but you're a few short tests and tutorials away from doing so. Fortunately, you're also not far from getting the Metroid Prime 4 Psychic Boots, which will unlock the double jump ability and more.

Want to know how much longer the journey will be? Find out the answer to how long is Metroid Prime 4, or discover what to do with the Metroid Prime 4 Green Crystals you might've found already!

© GamesRadar+. Not to be reproduced without permission.

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Joel Franey
Joel Franey
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Guides Editor, GamesRadar+

Joel Franey is a writer, journalist, podcaster and Very Tired Man with a BA from Brunel University, a Masters from Sussex University and a decade working in games journalism, often focused on guides coverage but also in reviews, features and news. His love of games is strongest when it comes to groundbreaking narratives like Disco Elysium, UnderTale and Baldur's Gate 3, as well as innovative or refined gameplay experiences like XCOM, Sifu, Arkham Asylum or Slay the Spire. He is a firm believer that the vast majority of games would be improved by adding a grappling hook, and if they already have one, they should probably add another just to be safe. You can find old work of his at Eurogamer, Gfinity, USgamer, SFX Magazine, RPS, Dicebreaker, VG247, and more.

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