Kill the bottom Mochtroid with Bombs or a Power Bomb, roll into the tunnel with Gravity, or avoid it with nothing. With no items, move left and cross about half way across the room before switching back to the right. This will make the Mochtroid move left and give Samus enough time to get to the morph tunnel without taking a hit.

Entrance condition:

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

Requires:

{
  "or": [
    "canTrickyDodgeEnemies",
    "Gravity",
    "h_canArtificialMorphBombs",
    "h_canArtificialMorphPowerBomb",
    {
      "enemyDamage": {
        "enemy": "Mochtroid",
        "type": "contact",
        "hits": 1
      }
    }
  ]
}