Shinespark up left to get onto the platform below the door. If gravity suit is on, hold right to land on the platform.

Entrance condition:

{
  "comeInShinecharged": {
    "framesRequired": 5
  },
  "comesThroughToilet": "any"
}

Requires:

"canSuitlessMaridia"
{
  "shinespark": {
    "frames": 62,
    "excessFrames": 6
  }
}