The acid does not rise in G-mode. Bomb boost near the first pirate until it places 18 lasers and fully overloads them so that other pirates won't place more. Very carefully IBJ over it or use Spring Ball or Power Bombs to kill it. Climb the shaft with a very long IBJ. At the top of the room, Crystal Flash on one of the ledges, below a wall pirate, to have it walk into Samus and trigger reserves. The pirate will randomly walk up and down and wall, but if it sees Samus and jumps across, it will start climbing up the left wall or down the right wall.

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "direct",
    "morphed": true
  }
}

Requires:

{
  "or": [
    "h_artificialMorphSpringBall",
    "canComplexGMode",
    {
      "and": [
        "h_artificialMorphPowerBomb",
        "h_artificialMorphPowerBomb"
      ]
    }
  ]
}
"h_artificialMorphLongIBJ"
"h_artificialMorphComplexRModeCrystalFlashInterrupt"
{
  "ammo": {
    "type": "Missile",
    "count": 10
  }
}