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, begin the shinespark at the door (in either this or the other room) with between 81 and 96 energy, or at least 113 energy; with a buffered crumble jump to the right, up to 102 energy can work.

Entrance condition:

{
  "comeInWithSpark": {
    "position": "bottom"
  }
}

Requires:

{
  "notable": "Reverse Spark"
}
{
  "or": [
    {
      "shinespark": {
        "frames": 94,
        "excessFrames": 10
      }
    },
    {
      "and": [
        "h_heatProof",
        "canControlShinesparkEnd",
        {
          "shinespark": {
            "frames": 94,
            "excessFrames": 42
          }
        }
      ]
    }
  ]
}
{
  "heatFrames": 650
}

Clears obstacles: A