Jump over the Alcoon's fireball and kill it and run through.

Requires:

"h_navigateHeatRooms"
{
  "enemyKill": {
    "enemies": [
      [
        "Alcoon"
      ]
    ],
    "explicitWeapons": [
      "Missile",
      "Super",
      "Plasma",
      "ScrewAttack",
      "PseudoScrew"
    ]
  }
}
{
  "heatFrames": 190
}

Clears obstacles: A

Dev note: Beams that take more than two shots are generally not quick enough to justify.