Carefully dodge the Rinkas, or take a hit, while carefully avoiding falling off, then use the i-frames to use the runway.

Requires:

"i_MotherBrainBarrier1Clear"
{
  "or": [
    "canTrickyDodgeEnemies",
    {
      "and": [
        "canUseIFrames",
        {
          "enemyDamage": {
            "enemy": "Rinka",
            "type": "contact",
            "hits": 1
          }
        }
      ]
    },
    {
      "and": [
        "Ice",
        "canTrickyJump"
      ]
    }
  ]
}

Exit condition:

{
  "leaveWithRunway": {
    "length": 6,
    "openEnd": 0
  }
}