Aim the leftmost Rinka to travel horizontally across the top of the room and use it to damage boost between the two floating platforms. Killing the Rinka will normalize it's respawn timer, which may help in setting up the correct angle. Let the Rinka stay far enough ahead of Samus that she can jump the full distance to the first platform without hitting it. And then once it has reached the right edge of the platform, use it to damage boost.

Requires:

{
  "notable": "Rinka Damage Boost"
}
{
  "enemyDamage": {
    "enemy": "Rinka",
    "type": "contact",
    "hits": 1
  }
}
"canTrickyJump"
"canHorizontalDamageBoost"
"canCameraManip"
{
  "or": [
    {
      "obstaclesCleared": [
        "A"
      ]
    },
    "canMetroidAvoid"
  ]
}

Aim the ceiling Rinka to travel horizontally across the top of the room and use it to damage boost between the two floating platforms. Killing the lower Rinka shortly before killing the higher Rinka will synchronize their respawn timers so that Samus can jump when the lower Rinka reappears in order to get a good angle on the higher Rinka. Jump to the floating platform ahead of the high Rinka, jumping extra high to lead the Metroid out of the way if it is alive. Jump into the Rinka once it reaches the left edge of the platform to reach the next platform. Then use i-frames to pass through the Metroid if it is still alive.

Requires:

{
  "notable": "Rinka Damage Boost"
}
{
  "enemyDamage": {
    "enemy": "Rinka",
    "type": "contact",
    "hits": 1
  }
}
"canTrickyJump"
"canHorizontalDamageBoost"
"canCameraManip"
{
  "or": [
    {
      "obstaclesCleared": [
        "A"
      ]
    },
    {
      "and": [
        "canMetroidAvoid",
        "canUseIFrames"
      ]
    }
  ]
}
{
  "or": [
    "canInsaneJump",
    {
      "enemyDamage": {
        "enemy": "Rinka",
        "type": "contact",
        "hits": 1
      }
    },
    {
      "and": [
        "canTrickyJump",
        "canLateralMidAirMorph"
      ]
    },
    {
      "and": [
        "Gravity",
        {
          "acidFrames": 16
        }
      ]
    },
    {
      "acidFrames": 27
    }
  ]
}