Freeze the Beetom while Samus is as far left as possible on the door ledge. Moonwalk carefully and start moondancing under the Beetom. As long as Samus is near the door, the other Beetoms won't come near.

Requires:

"canExtendedMoondance"
"canTrickyUseFrozenEnemies"
{
  "enemyDamage": {
    "enemy": "Beetom",
    "type": "contact",
    "hits": 1
  }
}
"h_extendedMoondanceBeetomLeniency"

Exit condition:

{
  "leaveWithStoredFallSpeed": {
    "fallSpeedInTiles": 2
  }
}