Requires:

{
  "or": [
    {
      "enemyKill": {
        "enemies": [
          [
            "Beetom",
            "Beetom",
            "Beetom",
            "Beetom"
          ]
        ]
      }
    },
    {
      "obstaclesCleared": [
        "A"
      ]
    }
  ]
}

Clears obstacles: A

Dev note: FIXME: If the Beetoms were not killable from 1->2 and are only killable by grabbing the item, this should take some contact hits. Escaping the room normally also requires the Beetoms to be killed, so the door ledge would not normally be a usable place to stand while dodging them.