Walk off the ledge (rather than running off), aim down, and shoot. Depending on your momentum coming in, if Zebes is awake you may need to shoot down twice, once to kill the Geemer and once to open the door. Press forward against the floating platform to make it through the door.

Entrance condition:

{
  "comeInShinecharged": {
    "framesRequired": 121
  }
}

Requires:

{
  "notable": "Carry Shinecharge From Right to Bottom"
}
"canShinechargeMovementComplex"

Exit condition:

{
  "leaveShinecharged": {
    "framesRemaining": "auto"
  }
}

Unlocks doors:

{"types":["ammo"],"requires":["never"]}