Wait for the acid to lower then quickly roll part way forward to trigger the Metarees and return. Then go again without any difficulty. Killing any of the Gamets will prevent them from respawning. With Bombs, horizontally boost then wait for the acid and IBJ above it. It is possible with Spring Ball alone, but it is easy to take damage; perform small jumps but hold jump before landing to prevent a small bounce in which Samus can't jump. On the return route, jump over the Gamets to let them pass instead of racing to get them off screen. With Power Bombs alone is particularly challenging. Kill the Gamets then place a bomb at the edge of the runway; hit the bomb with momentum and precise timing to get a boost to skip the first and land on the next safe platform. As quickly as possible place another and let it boost horizontally to the next platform, then another to get to the item.

Entrance condition:

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

Requires:

{
  "or": [
    "h_canArtificialMorphIBJ",
    {
      "and": [
        "h_canArtificialMorphSpringBall",
        {
          "or": [
            "h_canArtificialMorphBombThings",
            "canTrickyJump"
          ]
        }
      ]
    },
    {
      "and": [
        "canInsaneJump",
        "h_canArtificialMorphBombHorizontally",
        {
          "ammo": {
            "type": "PowerBomb",
            "count": 6
          }
        }
      ]
    }
  ]
}

Clears obstacles: A