Yakuza is a spider-like boss inMetroid Fusionthat players will battle in the Reactor Silo. Upon defeating this boss, fans will obtain the Space Jump ability, which can be used to perform consecutive spin jumps and access new areas. For those players that may be confused about which areas they should be targeting after beating the spider boss inMetroid Fusion, this walkthrough is here to provide some direction.
Metroid Fusion: What to Do After Spider Boss
Once Yakuza has been defeated, players should use their newly-obtained Space Jump ability to reach the boss room’stop-left corner. Indeed, there is a path in this position, whichMetroidfanscan use to reach theAuxiliary Power Station. Players should stand on the device within this room to restore the station’s auxiliary power and then head into theNavigation Roomto the left.
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Here, fans are instructed to find the source of the roots that are “choking the Reactor Core components,” and they should continue moving left until they reach theCentral Reactor Core. Notably, there is aSave Stationattached to thebottom-right cornerof this room, and players are advised to visit it. It is also recommended that fans spend some time farming the enemies near the Save Station door in order to havefull Energygoing into the game’s next section.
Once a save has been made and Energy has been refilled, players should Space Jump near the Central Reactor Core’sleft wall. Eventually, fans of2DMetroidgameswill see a Morph Ball-sized tunnel carved into this wall, and they should shoot the vines that block it with Samus’s Beam and pass through. Players should then use a Power Bomb on the next screen to quickly clear the tunnel and enterSector 2 (TRO).

Upon dropping into Sector 2, fans will initiate achase sequencewithMetroid Fusion’s SA-X. To get through this section, players are advised to freeze the SA-X withIce Missileswhen it approaches Samus and use a Power Bomb on the second screen to destroy the walls without delay. Fans must then simply shoot the buttons to open the gates on the third screen, and hide behind the wall on the fourth screen until the SA-X loses interest.
With the chase ended, players should return to the room with themultiple buttons and gatesand use a Missile and Power Bomb to open ahole in the ground. Fans should then drop into this hole and exit the screen to the left.

In the next room, players will see a door directly in front of them, and it can be accessed by using a Power Bomb to open a hole above. Fans should then simply pass through a small hallway to reach a metallic room, where they should use Space Jump to climb to thetop-left cornerand access adoor in the top-right corner. Notably, players will see empty spaces to their right as they draw near to the top of the room, and they can useSamus Aran’s Beam to create holes in the walls and reach aPower Bomb Tankthat is held within those spaces.
Players will now find themselves in aSave Station, which they should utilize before continuing one screen to the right. Fans ofMetroidvaniasshould then advance one more screen to the right andshoot the ceilingnear the entrance to reveal a path upward. This path will ultimately lead players to a door blocked by a Gadora, and Nettori, a boss that awards the Plasma Beam, is beyond it.

Metroid Fusionis available on Game Boy Advance and Nintendo Switch Online + Expansion Pack.
