After entering the room, quickly leave the morph tunnel in order to prevent getting hit by the crab.

Entrance condition:

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

Requires:

"h_artificialMorphLongIBJ"
"Gravity"

Dev note: The tunnel does not need to be expanded for Samus to get into the morph tunnel without getting stuck, regardless of if she has Morph or artificial morph, and is in direct or indirect G-mode.