Do not kill all three Metroids, or else they cannot be farmed again, leaving only Crystal Flash as an option. Kill two and lure the remaining Metroid to the top of the room. Shinecharge in the narrow space at the bottom door and use a Rinka to interrupt.

Entrance condition:

{
  "comeInWithRMode": {}
}

Requires:

"Ice"
{
  "or": [
    {
      "and": [
        "h_CrystalFlashForReserveEnergy",
        {
          "or": [
            "f_KilledMetroidRoom4",
            {
              "obstaclesCleared": [
                "f_KilledMetroidRoom4"
              ]
            }
          ]
        }
      ]
    },
    {
      "and": [
        {
          "not": "f_KilledMetroidRoom4"
        },
        "canRiskPermanentLossOfAccess",
        "h_RModeCanRefillReserves",
        {
          "enemyKill": {
            "enemies": [
              [
                "Metroid"
              ],
              [
                "Metroid"
              ]
            ],
            "explicitWeapons": [
              "Missile",
              "Super"
            ]
          }
        },
        {
          "partialRefill": {
            "type": "ReserveEnergy",
            "limit": 20
          }
        },
        {
          "or": [
            "Morph",
            "canMetroidAvoid"
          ]
        }
      ]
    }
  ]
}
{
  "canShineCharge": {
    "usedTiles": 12,
    "openEnd": 0
  }
}
{
  "autoReserveTrigger": {
    "maxReserveEnergy": 95
  }
}
"canRModeSparkInterrupt"