12

Kill the Fune. Crystal Flash or farm the top fireflea. After the shine charge, jump up to the first fune and take a fireball to interrupt. Note: farming more than the top fireflea while still in R-Mode will cause Samus to become difficult to see.

Entrance condition:

{
  "comeInWithRMode": {}
}

Requires:

{
  "enemyKill": {
    "enemies": [
      [
        "Fune"
      ]
    ]
  }
}
{
  "or": [
    "h_CrystalFlashForReserveEnergy",
    {
      "and": [
        "h_RModeCanRefillReserves",
        {
          "partialRefill": {
            "type": "ReserveEnergy",
            "limit": 20
          }
        },
        {
          "or": [
            {
              "resourceMissingAtMost": [
                {
                  "type": "PowerBomb",
                  "count": 0
                }
              ]
            },
            {
              "resourceMissingAtMost": [
                {
                  "type": "Missile",
                  "count": 0
                }
              ]
            }
          ]
        }
      ]
    }
  ]
}
{
  "canShineCharge": {
    "usedTiles": 20,
    "gentleDownTiles": 2,
    "openEnd": 1
  }
}
{
  "autoReserveTrigger": {
    "maxReserveEnergy": 95
  }
}
"canRModeSparkInterrupt"

Clears obstacles: A