Entrance condition:

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

Requires:

{
  "or": [
    "h_artificialMorphMovement",
    "h_artificialMorphBombHorizontally"
  ]
}
"h_heatedGModeOffCameraDoor"

Dev note: It is possible to open the gate as it closes, but isn't expected since this is off camera. To do that would require resetting the room.