Move very quickly to bring a shinespark from the speedway up to the Save Room door. Preclear the Cacatacs, and it may help to not run while platforming if HiJump is not available.

Requires:

"h_heatProof"
{
  "obstaclesCleared": [
    "A"
  ]
}
"canShinechargeMovementTricky"
"h_canShineChargeMaxRunway"
{
  "shinespark": {
    "frames": 12
  }
}

Exit condition:

{
  "leaveWithSpark": {}
}

Unlocks doors:

{"types":["ammo"],"requires":[]}