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Spark left through the speed blocks, then run to the right and back to get speed to go through the rest. If performing the spark with low energy, there is a risk of ending the spark above the spikes or in front of the Pirate; to be safe, assuming Samus has heat protection and begins sparking about 3 tiles from the Speed blocks, start with between 72 and 87 energy or at least 105 energy; with a buffered crumble jump to the right, up to 93 energy can work.

Entrance condition:

{
  "comeInShinecharged": {
    "framesRequired": 35
  },
  "comesThroughToilet": "any"
}

Requires:

{
  "notable": "Reverse Spark"
}
"canShinechargeMovement"
"canHorizontalShinespark"
{
  "or": [
    {
      "shinespark": {
        "frames": 87,
        "excessFrames": 10
      }
    },
    {
      "and": [
        "h_heatProof",
        "canControlShinesparkEnd",
        {
          "shinespark": {
            "frames": 87,
            "excessFrames": 44
          }
        }
      ]
    }
  ]
}
{
  "heatFrames": 675
}
{
  "or": [
    "canSpeedball",
    {
      "heatFrames": 15
    }
  ]
}

Clears obstacles: A