12

Avoid the bottom Pirates and jump high enough to break the bomb blocks with a power bomb. During the explosion, climb the right wall passing through any Pirates and use a movement item to reach the top.

Requires:

{
  "notable": "Power Bombs and a Jump Assist"
}
"canDash"
"canHitbox"
"h_usePowerBomb"
"canTrivialMidAirMorph"
{
  "or": [
    {
      "and": [
        "SpaceJump",
        "canPreciseWalljump",
        {
          "heatFrames": 490
        }
      ]
    },
    {
      "and": [
        "HiJump",
        "canSpeedyJump",
        "SpaceJump",
        {
          "heatFrames": 420
        }
      ]
    },
    {
      "and": [
        "canSpringwall",
        {
          "heatFrames": 490
        }
      ]
    },
    {
      "and": [
        "HiJump",
        "canPreciseWalljump",
        "canInsaneJump",
        {
          "heatFrames": 470
        }
      ]
    },
    {
      "and": [
        "HiJump",
        "canSpeedyJump",
        "canTrickySpringBallJump",
        "canInsaneJump",
        {
          "heatFrames": 410
        }
      ]
    },
    {
      "and": [
        "HiJump",
        "SpaceJump",
        "canInsaneJump",
        {
          "heatFrames": 600
        }
      ]
    }
  ]
}
{
  "or": [
    "h_heatResistant",
    "canPauseAbuse",
    {
      "resourceCapacity": [
        {
          "type": "RegularEnergy",
          "count": 149
        }
      ]
    }
  ]
}

Clears obstacles: A

Dev note: With Reserves only, canPauseAbuse is used as a proxy for pause abuse or optimal reserve management and character movement.