Place the PBs next to the pillars in order to only use 2. Avoid acid during the first Power Bomb by walljumping before placing the bomb. Avoiding acid damage at the last jump is tricky but possible.

Requires:

{
  "notable": "Two Power Bombs"
}
"canMidAirMorph"
{
  "ammo": {
    "type": "PowerBomb",
    "count": 2
  }
}
"canCarefulJump"
{
  "or": [
    {
      "and": [
        "canWallJumpInstantMorph",
        {
          "heatFrames": 690
        }
      ]
    },
    {
      "and": [
        "canWalljump",
        {
          "heatFrames": 660
        },
        {
          "acidFrames": 36
        }
      ]
    },
    {
      "and": [
        "canSuitlessLavaDive",
        {
          "heatFrames": 840
        },
        {
          "acidFrames": 84
        }
      ]
    },
    {
      "and": [
        "Gravity",
        {
          "heatFrames": 660
        },
        {
          "acidFrames": 24
        }
      ]
    }
  ]
}
{
  "or": [
    "canInsaneJump",
    {
      "and": [
        "canTrickyJump",
        "canLateralMidAirMorph",
        {
          "heatFrames": 10
        },
        {
          "acidFrames": 10
        }
      ]
    },
    {
      "and": [
        "canPreciseWalljump",
        {
          "heatFrames": 50
        },
        {
          "acidFrames": 32
        }
      ]
    },
    {
      "and": [
        "Gravity",
        {
          "heatFrames": 20
        },
        {
          "acidFrames": 20
        }
      ]
    },
    {
      "and": [
        "canSuitlessLavaDive",
        {
          "heatFrames": 50
        },
        {
          "acidFrames": 50
        }
      ]
    }
  ]
}
{
  "or": [
    "h_heatResistant",
    "canPauseAbuse",
    {
      "resourceCapacity": [
        {
          "type": "RegularEnergy",
          "count": 149
        }
      ]
    }
  ]
}

Unlocks doors:

{"types":["missiles"],"requires":[{"heatFrames":30},{"acidFrames":20}]}
{"types":["super"],"requires":[]}
{"types":["powerbomb"],"requires":[{"heatFrames":75},{"acidFrames":58}]}

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