12

Do not kill all four Metroids, or else they cannot be farmed again, leaving only Crystal Flash as an option. Shinecharge at the left door, and then use a Rinka or the acid to interrupt.

Requires:

{
  "obstaclesCleared": [
    "R-Mode"
  ]
}
{
  "or": [
    {
      "and": [
        "h_CrystalFlashForReserveEnergy",
        {
          "or": [
            "canInsaneJump",
            {
              "obstaclesCleared": [
                "B"
              ]
            }
          ]
        }
      ]
    },
    {
      "and": [
        "canRiskPermanentLossOfAccess",
        {
          "not": "f_KilledMetroidRoom1"
        },
        "h_RModeCanRefillReserves",
        "Ice",
        {
          "enemyKill": {
            "enemies": [
              [
                "Metroid"
              ],
              [
                "Metroid"
              ],
              [
                "Metroid"
              ]
            ],
            "explicitWeapons": [
              "Missile",
              "Super"
            ]
          }
        },
        {
          "partialRefill": {
            "type": "ReserveEnergy",
            "limit": 40
          }
        }
      ]
    }
  ]
}
{
  "or": [
    {
      "obstaclesCleared": [
        "B"
      ]
    },
    "canMetroidAvoid",
    "Ice"
  ]
}
{
  "canShineCharge": {
    "usedTiles": 29,
    "openEnd": 1
  }
}
{
  "autoReserveTrigger": {
    "maxReserveEnergy": 95
  }
}
"canRModeSparkInterrupt"

Resets obstacles: R-Mode