Use a frozen Mochtroid to extend the length of the runway. Positioning the Mochtroid can be done by dropping down below then climbing back up with the frozen Mochtroid as a platform. Alternatively, freeze the Mochtroid with an angle-down shot while falling below then quickly climb back up.

Requires:

"h_navigateUnderwater"
"h_frozenEnemyRunway"
{
  "or": [
    "canMochtroidIceClimb",
    {
      "and": [
        "Gravity",
        {
          "or": [
            "SpaceJump",
            "canWalljump"
          ]
        }
      ]
    }
  ]
}
{
  "enemyDamage": {
    "enemy": "Mochtroid",
    "type": "contact",
    "hits": 2
  }
}

Exit condition:

{
  "leaveWithRunway": {
    "length": 4,
    "openEnd": 1
  }
}

Dev note: There are many other ways to get into position, but they would require manipulating the Mochtroid as much as canMochtroidIceClimb expects.