Chapter 4: Sanctuary Fortress

In Temple Transport Access, scan the panel to go to the second corridor, then scan one of the Serenity Class Drones on the wall.

Progress to the Power Junction and scan the Octopedes in the corridor.

In Reactor Access, use the dark visor and seeker missile to lower the bridge. Then scan the Rezbit that appears. It can only be damaged when its shield is down.

In the Reactor Core, there are robots walking around. Scan the body and the head for the Quad MB and Quad CM entries. First destroy the head by shooting it. When the body starts spinning around, hit it with the boost ball. Then use another boost ball to hit the red light below the body which will destroy it.

The missile door leads to a Save Station. Then go through the blue door at the top of the room. In the Minigyro Chamber, scan the panel to know which order of bomb slots you need to use. Go through the portal in the Hall of Combat Mastery. Scan the Ingworm Cache and then head through the door to the right.

In the Hazing Cliff, scan the Dark Diligence Drone and Dark Tallon Metroid here. Destroy the drones with a charged light beam to go through the corridor and find a Missile Expansion.

Return to the Culling Chamber and go through the dark beam door. Proceed to the Hive Dynamo Works. Use the grapple beam to cross the room. Then turn around and use the dark visor and seeker missile to lower the force field. Head through the portal. Take the dark beam door. Scan the Diligence Class Drone in the corridor. It can be destroyed with a dark beam shot. Then scan the Mechlops that's in the floor. Go through the small space in the floor and continue to the Main Gyro Chamber.

Go through the small space in the right wall and then use the bomb slot. Align all of the colors on the window and use the second bomb slot. Use the ring to cross the room and enter the small space in the left wall. Scan the panel, take the elevator, and go through the blue door. Proceed to the Sanctuary Temple and scan the dark robots for the Dark Quad MB and Dark Quad CM entries.

Use the grapple points at the top of the room to go to the Sanctuary Energy Controller. Scan the hologram to start the cutscene. Then scan the cobalt hologram for the Agon Falls entry.

Return back to the Sanctuary Temple and go through the door behind the cobalt hologram. In the Workers Path, scan the hidden panel to use the orb cannon. Go into Dynamo Works, before going through the small space, scan the Spider Guardian. This is the only time to do so. There are a series of small space puzzles with bomb slots. To activate the slot, you must hit the guardian with three bombs. Then you must quickly use the bomb slot to create a path for the guardian to take damage. After defeating it, you'll get the Spider Ball. Go back to the second area of the boss fight and use the spider rails to reach a Missile Expansion. Then head through the small space and scan the body for the C-Rch's Testament entry.

Head through the blue door and go to the Hall of Combat Mastery. Scan the Spider Ball Track. Also scan the cobalt hologram for the The Final Crusade entry. Go up the spider ball track in the main area of the room to go through a series of small space puzzles, leading to a Missile Expansion.

Go through the portal. In the Culling Chamber, use the spider ball track in the middle of the room to reach a Dark Temple Key.

Return to the light world. Scan the Ingsmasher here.

Go to the Reactor Core. Use the spider ball tracks to go up this room and find an Energy Tank (you'll need to use the boost ball to jump from track to track).

Take the elevator back to Temple Grounds. Then head to Temple Transport A and take that elevator. Go to Temple Transport C and take that elevator. Finally, take the elevator to Torvus Bog. Head to the Torvus Temple and take the elevator down to the Hydrodynamo Station. Go all the way down to the Main Hydrochamber and use the spider ball track to go through the portal. Here you'll encounter the Power Bomb Guardian, which must be scanned now. To deal damage, you just have to use the spider ball tracks to use each of the bomb slots. After defeating it, you'll get the Power Bomb.

Head through the power bomb door and use the portal in Undertemple Access. Head to the Training Chamber. In the water, use the spider ball tracks to reach the bomb slot on the statue, which leads to a Missile Expansion.

Go through the power bomb door and take the elevator to Sanctuary Fortress. Progress to Main Research. Scan the cobalt hologram to the left for the Torvus Falls entry. Then use the spider ball track puzzle on the left wall to reach a Missile Expansion. Finally scan the Caretaker Class Drone that's in the central tube of the room.

In the Transit Station, use a power bomb to go through the first portal on the right. Scan the Dark Ingsmasher that busts through the wall. Then go through the nearby portal. Head through the small space on the left and go through another portal. Use the spider ball track to the right to go through 1 more portal. Then use the spider ball track to find a Power Bomb Expansion.

Head to the Reactor Core, then to the Hall of Combat Mastery. Take the elevator near here and proceed to the Main Gyro Chamber. Go up to the door that's by Temple Access. Use a power bomb on the rubble on the left side of the room. Use the bomb slot, align all the colors on the window, and then use the second bomb slot. Use the new spider ball track to reach the power bomb door at the top of the room. Proceed to Aerie Access to encounter Dark Samus, who must be scanned now. It can be damaged with either the power beam or light beam. You'll need to switch between the dark visor and combat visor throughout the fight.

After the battle, head through the broken window, walk along the ledge and take the portal. In the Hive Summit, use the spinner to rotate the spider ball tracks. Then use the tracks to use the portal. Then jump across the platform to get the Echo Visor.

Use the echo visor to shoot the invisible targets and activate the elevator. In the Checkpoint Station, use the echo visor to destroy the invisible door lock. Go to Dynamo Works and take the elevator in Central Area Transport East. Continue all the way to Main Research. Use the echo visor to shoot the locks and lower the gate near the portal. In the Staging Area, use the echo visor again to lower a door, revealing a panel. Scan it and then head through the portal below. Take the spider ball track up. You'll have to use boost jumps along the tracks to damage the drone above you. Climb all the way to the top, follow the small space and head through the blue door. In Central Area Transport West, use the echo visor to use the orb cannon. In the Watch Station, scan the cobalt hologram in the corner by the light beam door for the Sanctuary Falls entry. Follow the spider ball tracks along the wall to find a Beam Ammo Expansion (when you reach the bomb slot, there's another track to the left that leads to the expansion). Then use the bomb slot to head through the portal.

In the Aerial Training Site, take the first door on the right. Go through the portal in the Judgment Drop. Head through the door above the portal. Go to the central structure of the Vault. Scan the panel on the lower level to lower the bridge and then go through the portal. Use the grapple beam to cross Vault Attack Portal. Before going through the portal, scan one of the dark war wasps.

Back in the Vault, use the platforms to jump all around the room and use all 4 spinners. Head back through the portal. In Vault Attack Portal, cross the gap and go through that portal. In the Vault, use the bomb slot in central structure to get the Screw Attack.

Use the screw attack to return all the way to Central Area Transport West. Fall down one level and enter the small space in the wall. You'll need to stay in the middle to get a Missile Expansion.

Return back to Main Research and go through the portal. Go through the blue door. Scan the Wall Jump Surface in Central Hive West Transport. Then use the screw attack against that surface to go all the way up.

Grab the Dark Temple Key at the entrance of the Aerial Training Site. Scan the panel to lower the force fields. Across the room is a jump surface. Use it to reach a Missile Expansion.

Go through the portal and take the light beam door. To the left of the entrance in Watch Station Access is an Energy Tank.

Use the screw attack to cross the gap and continue to Dynamo Works. Go through the portal, then take the light beam door. Use the echo visor to lower the door in Hive Dynamo Access. In the Hive Gyro Chamber, use the spider ball tracks in the central area to find the last Dark Temple Key.

Take the door that's next to the light beam door. Step into the light in Hive Temple Access to progress to the Hive Temple, where you'll encounter Quadraxis. Scan it right away for the Quadraxis entry. Then you'll want to shoot each of the joints of the legs with 2 super missiles when the joints light up. After destroying all the joints the next phase will begin. Scan the head and body for the Damaged Quadraxis and Shielded Head Module entries. Use the echo visor to destroy the antenna coming out of the body. Then scan the head again for the Stunned Head Module entry. While it's stunned, use the echo visor to destroy one of the 3 invisible antennae on the head to deal damage. After destroying all 3, the final phase will start. Shoot the head to stun it. Then use one of the spider ball tracks to boost jump onto the head. Finally, place a bomb in one of the slots to deal damage. After defeating it, you'll get the Annihilator Beam.

Go through the annihilator beam door that's across from the entrance. Continue to the Hive Energy Controller and collect the energy. Return to the Hive Temple and take the other annihilator beam door. Scan the ingstorm in Temple Security Access.

In the Aerial Training Site shoot the crystal and beacon with the annihilator beam and then scan them for the Super Crystal and Super Beacon entries. Then head through the portal.

Go through the last remaining door in the Watch Station. Scan the mekenobite on the ceiling of Sentinel's Path. It can be destroyed by hitting both legs with the seeker missile. Then use the echo visor and annihilator beam to shoot the beacons in order and unlock the door that leads to a Missile Expansion (right, right, left, right).

Go to the Sanctuary Energy Controller and return the energy. Use the Workers Path to go to the Dynamo Works. Take the power bomb door and then go through the portal. In the Hive Dynamo Works, use the spider ball tracks to cross the room. Turn on the dark visor and shoot the flying ing cache. Then scan it and destroy it to get a Sky Temple Key.

Return to the portal and go through. Head to the Main Gyro Chamber. Take the elevator to the lower level. Scan the cobalt hologram for the Shattered Hope entry. Use the echo visor to shoot the beacons and unlock the door. Then use the orb cannon to get a Power Bomb Expansion.

Head to Temple Access. Use the dark visor and seeker missile to activate the orb cannon. Use the cannon to enter the small space in the floor and find a Missile Expansion.

Return all the way back to Sanctuary Entrance. To the right is an elevator. Use a power bomb to break the glass and use it. Then scan the panel. Use the orb cannon by the elevator and then go up the spider ball track. Use the turret to destroy the rubble near the light beam door. Also destroy the rubble above the blue door. Scan the cobalt hologram where the rubble was for the Twilight entry. Go up the spider ball tracks and scan the body for the S-Jrs's Testament entry. Use the screw attack to cross the room and get a Power Bomb Expansion.

Take the elevator to Temple Grounds. Head to the Communication Area. On a platform near some war wasp hives you'll find a plate that can be destroyed with a power bomb. Inside is a Missile Expansion.

Head through the door at the top of the room. Scan the body for the D-Isl's Testament entry.

Go to the Dynamo Chamber. Use a power bomb to destroy the gate. Then use another power bomb on the left wall to find a Power Bomb Expansion.

Go to the Temple Assembly Site and take the portal. In the Plain of Dark Worship you'll find a Missile Expansion in the tree roots.

Head through the seeker missile door. Continue to the Accursed Lake. Scan one of the dormant ingclaws. Use the dark visor to destroy the flying ing cache to get a Sky Temple Key.

Return back to the Plain of Dark Worship and go through the portal. Take the elevator to Temple Transport B. Then go to the Main Energy Controller to get the Light Suit.