Entrance condition:

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

Requires:

"Gravity"
{
  "or": [
    "h_canArtificialMorphIBJ",
    "h_canArtificialMorphSpringBallBombJump"
  ]
}

Clears obstacles: A

Dev note: This link doesn't accomplish anything, other than enabling Samus to return with Artificial Morph. Samus does not obtain the item until returning and exiting G-Mode, so all the requirements must be here.