Moonfall into the door transition and stay in spin to fall through the top 4 levels of solid tiles. A flatley style turnaround will land between the Bomb and Crumble blocks and can be continued with another Moonfall.

Entrance condition:

{
  "comeInWithStoredFallSpeed": {
    "fallSpeedInTiles": 1
  }
}

Requires:

"canPrepareForNextRoom"
"canMoonfall"
{
  "enemyDamage": {
    "enemy": "Multiviola",
    "type": "contact",
    "hits": 1
  }
}
{
  "or": [
    {
      "ammo": {
        "type": "Missile",
        "count": 3
      }
    },
    {
      "ammo": {
        "type": "Super",
        "count": 3
      }
    },
    "Plasma",
    "h_heatProof"
  ]
}
{
  "heatFrames": 300
}