Clear out the Kihunters near the door, and freeze two Atomics to set up a moonfall between them, and aim down. After gaining enough speed, press forward to fall down and clip past the door shell below. Falling with too much speed can cause Samus to go out of bounds.

Requires:

{
  "obstaclesCleared": [
    "A"
  ]
}
"f_DefeatedPhantoon"
"canEnemyStuckMoonfall"
"canFreeFallClip"
"canTrickyUseFrozenEnemies"

Bypasses door shell: true