Crouch under the crumble blocks. Holding both angle buttons to aim upward, freeze the Mochtroid while it is on Samus. Jump onto the Mochtroid by quickly pressing down after jumping. When on it, press up to stand then jump through the ceiling. With no jump assists, use a frozen Mochtroid as a platform to get to the ledge above the door.

Requires:

{
  "notable": "Mochtroid Ice Clip"
}
"h_canNavigateUnderwater"
"canUseFrozenEnemies"
{
  "disableEquipment": "Gravity"
}
{
  "or": [
    "canTrickyJump",
    {
      "and": [
        "canDodgeWhileShooting",
        {
          "enemyDamage": {
            "enemy": "Mochtroid",
            "type": "contact",
            "hits": 1
          }
        }
      ]
    },
    {
      "enemyDamage": {
        "enemy": "Mochtroid",
        "type": "contact",
        "hits": 2
      }
    }
  ]
}