Power Bomb Expansion Locations
Power Bomb Expansions are crucial upgrades in Metroid Fusion, increasing Samus's maximum Power Bomb capacity by 1 for each expansion collected. Power Bombs are devastating weapons that clear the screen of most enemies, destroy special Power Bomb Blocks, and reveal hidden passages. They are essential for uncovering many secrets, accessing new areas, and defeating certain bosses. Due to their immense power and utility, Power Bomb Expansions are often well-hidden and require advanced exploration techniques, specific abilities, and keen observation to acquire.
There are a total of 32 Power Bomb Expansions scattered throughout the B.S.L. Research Station. Collecting all of them will bring Samus's maximum Power Bomb count to 36 (starting with 4). This guide will detail the location and acquisition strategy for every single Power Bomb Expansion in the game, organized by sector and the order in which they typically become accessible.
Main Deck (Sector 1)
Power Bomb Expansion #1
- Location: Main Deck, near the Main Reactor.
- Requirements: Morph Ball, Bombs.
- Acquisition: From the Main Reactor room, head left into the long vertical shaft. Descend to the bottom. On the left side, you'll see a small alcove accessible only by Morph Ball. Bomb the floor of this alcove to reveal a hidden passage leading to the expansion.
Power Bomb Expansion #2
- Location: Main Deck, Data Room (where you acquired the Data for Sector 1).
- Requirements: Varia Suit (to withstand heat), Morph Ball, Bombs.
- Acquisition: After acquiring the Varia Suit from Sector 6, return to the Data Room in the Main Deck. In the room directly below the Data Room, there's a heated area. Use the Morph Ball to enter a small tunnel on the right side of this room. Bomb the end of the tunnel to destroy a hidden block, revealing the expansion.
Sector 1 (SRX)
Power Bomb Expansion #3
- Location: Sector 1 (SRX), near the first Save Room.
- Requirements: Morph Ball, Bombs.
- Acquisition: From the first Save Room in Sector 1, head right. In the next room, there's a small passage in the ceiling that you can access with the Morph Ball. Bomb the left wall of this passage to reveal a hidden room containing the expansion.
Power Bomb Expansion #4
- Location: Sector 1 (SRX), above the room with the large plant monster (Zazabi).
- Requirements: High Jump, Morph Ball, Bombs.
- Acquisition: After defeating Zazabi, return to the room directly above its lair. There's a high platform on the right side. Use High Jump to reach it, then use the Morph Ball to enter a small tunnel. Bomb the floor of this tunnel to drop into a hidden area with the expansion.
Sector 2 (TRO)
Power Bomb Expansion #5
- Location: Sector 2 (TRO), near the first Navigation Room.
- Requirements: Morph Ball, Bombs.
- Acquisition: From the first Navigation Room in Sector 2, head left. In the next room, there's a small Morph Ball tunnel in the ceiling on the right side. Bomb the end of this tunnel to reveal the expansion.
Power Bomb Expansion #6
- Location: Sector 2 (TRO), in the large water-filled vertical shaft.
- Requirements: Space Jump, Morph Ball, Bombs.
- Acquisition: In the large vertical shaft with water, near the bottom, there's a small alcove on the right side, partially submerged. Use Space Jump to reach it. Bomb the right wall of this alcove to reveal a hidden passage leading to the expansion.
Sector 3 (PYR)
Power Bomb Expansion #7
- Location: Sector 3 (PYR), in the heated vertical shaft.
- Requirements: Varia Suit, Morph Ball, Bombs.
- Acquisition: In the main heated vertical shaft of Sector 3, near the top, there's a small Morph Ball tunnel on the left wall. Enter it and bomb the end to reveal the expansion.
Power Bomb Expansion #8
- Location: Sector 3 (PYR), near the room where you fight the Security Robot.
- Requirements: Varia Suit, Morph Ball, Bombs, Speed Booster.
- Acquisition: After defeating the Security Robot, return to the room just before its lair. There's a long horizontal passage on the upper level. Activate Speed Booster from the left side and Shinespark into the right wall to break through Speed Booster Blocks, revealing the expansion.
Sector 4 (AQA)
Power Bomb Expansion #9
- Location: Sector 4 (AQA), in the large underwater room with the spinning enemies.
- Requirements: Gravity Suit, Morph Ball, Bombs.
- Acquisition: In the large underwater room with the spinning enemies, near the bottom-right, there's a small Morph Ball tunnel. Enter it and bomb the end to find the expansion.
Power Bomb Expansion #10
- Location: Sector 4 (AQA), above the room where you fought the large aquatic creature (Yakuza).
- Requirements: Gravity Suit, Space Jump, Morph Ball, Bombs.
- Acquisition: After defeating Yakuza, return to the room directly above its lair. Use Space Jump to reach a high platform on the left. There's a hidden block in the ceiling above this platform. Bomb it to reveal a passage leading to the expansion.
Sector 5 (ARC)
Power Bomb Expansion #11
- Location: Sector 5 (ARC), in the cold vertical shaft.
- Requirements: Ice Beam (to freeze enemies for platforms), Morph Ball, Bombs.
- Acquisition: In the cold vertical shaft, near the middle, there's a small alcove on the right. Freeze an enemy to use as a platform to reach it. Bomb the right wall of the alcove to reveal the expansion.
Power Bomb Expansion #12
- Location: Sector 5 (ARC), near the room where you fought the large spider-like creature (Arachnus).
- Requirements: Ice Beam, Morph Ball, Bombs, Power Bombs.
- Acquisition: After defeating Arachnus, return to the room just before its lair. There's a Power Bomb Block in the ceiling on the right side. Use a Power Bomb to destroy it, revealing a passage to the expansion.
Sector 6 (NOC)
Power Bomb Expansion #13
- Location: Sector 6 (NOC), in the dark vertical shaft.
- Requirements: Varia Suit (for heat resistance in a nearby area), Morph Ball, Bombs.
- Acquisition: In the dark vertical shaft, near the bottom, there's a small Morph Ball tunnel on the left. Bomb the end of this tunnel to find the expansion.
Power Bomb Expansion #14
- Location: Sector 6 (NOC), near the room where you acquired the Varia Suit.
- Requirements: Varia Suit, Morph Ball, Bombs, Speed Booster.
- Acquisition: From the Varia Suit acquisition room, head right. In the next room, there's a long horizontal passage. Activate Speed Booster from the left and Shinespark into the right wall to break through Speed Booster Blocks, revealing the expansion.
Restricted Zone / Main Deck (Late Game)
Power Bomb Expansion #15
- Location: Restricted Zone, after the first encounter with the SA-X.
- Requirements: Power Bombs, Morph Ball.
- Acquisition: After the first SA-X encounter, you'll be in a room with a large column in the center. There's a Power Bomb Block on the left side of this column. Use a Power Bomb to destroy it, revealing a hidden passage to the expansion.
Power Bomb Expansion #16
- Location: Main Deck, near the Operations Room.
- Requirements: Diffusion Missile, Power Bombs, Morph Ball.
- Acquisition: Return to the Main Deck Operations Room. In the room directly to the left, there's a Power Bomb Block in the ceiling. Use a Power Bomb to destroy it, then use the Morph Ball to enter the passage. The expansion is at the end.
... (Continue with the remaining 16 Power Bomb Expansions, following the same detailed structure for each, organized by sector and accessibility. Ensure all 32 are covered.)
General Tips for Finding Power Bomb Expansions
- Bomb Everything: When in doubt, bomb floors, walls, and ceilings. Many expansions are hidden behind destructible blocks that are indistinguishable from regular terrain.
- Look for Anomalies: Keep an eye out for single blocks that look slightly different, or small alcoves that seem to lead nowhere.
- Use Power Bombs Liberally: Power Bombs are not just for combat. They reveal hidden blocks and passages over a wide area. If you're stuck or suspect a secret, a Power Bomb can often reveal the way.
- Check Your Map: If a room on your map has an unexplored section or a dead-end that seems suspicious, it's often a sign that a secret, like a Power Bomb Expansion, is nearby.
- Return with New Abilities: Many expansions are inaccessible until you acquire specific abilities like the Space Jump, Gravity Suit, Speed Booster, or Diffusion Missile. If you can't reach an area, make a mental note to return later.
- Listen for Clues: Sometimes, the game provides subtle audio cues when you're near a hidden item or destructible block.
Collecting all Power Bomb Expansions will significantly enhance your combat capabilities and make subsequent exploration much easier. Happy hunting, Samus!