It is possible to shake the Beetom off near the right door while facing left, then lure it down to the bottom without taking more hits (or to kill the Pirates with Bombs).

Requires:

{
  "or": [
    "Morph",
    {
      "obstaclesCleared": [
        "A"
      ]
    }
  ]
}
{
  "or": [
    {
      "and": [
        {
          "enemyKill": {
            "enemies": [
              [
                "Green Space Pirate (standing)",
                "Green Space Pirate (standing)",
                "Green Space Pirate (standing)"
              ],
              [
                "Green Space Pirate (standing)",
                "Green Space Pirate (standing)"
              ]
            ]
          }
        },
        {
          "or": [
            {
              "enemyDamage": {
                "enemy": "Beetom",
                "type": "contact",
                "hits": 8
              }
            },
            {
              "and": [
                "canTrickyDodgeEnemies",
                "canEscapeEnemyGrab",
                {
                  "enemyDamage": {
                    "enemy": "Beetom",
                    "type": "contact",
                    "hits": 5
                  }
                }
              ]
            }
          ]
        }
      ]
    },
    {
      "and": [
        {
          "enemyDamage": {
            "enemy": "Beetom",
            "type": "contact",
            "hits": 5
          }
        },
        {
          "enemyDamage": {
            "enemy": "Green Space Pirate (standing)",
            "type": "contact",
            "hits": 3
          }
        }
      ]
    }
  ]
}

Exit condition:

{
  "leaveWithGModeSetup": {
    "knockback": false
  }
}

Unlocks doors:

{"types":["ammo"],"requires":[]}

Dev note: FIXME: If starting the room at the bottom, the way it is written requires killing the pirates twice. If starting from the top of the room, it's going to take more hits and wiggling the Beetom off above if the only way to kill the pirates is with Power Bombs.