Use the full runway by dealing with the Boyon: kill it, freeze it, or use i-frames.

Requires:

{
  "or": [
    "Ice",
    {
      "enemyKill": {
        "enemies": [
          [
            "Boyon"
          ]
        ]
      }
    },
    {
      "and": [
        "canNeutralDamageBoost",
        {
          "enemyDamage": {
            "enemy": "Boyon",
            "hits": 1,
            "type": "contact"
          }
        }
      ]
    }
  ]
}

Exit condition:

{
  "leaveWithRunway": {
    "length": 8,
    "openEnd": 1
  }
}