Requires:

"h_lavaProof"
{
  "or": [
    {
      "and": [
        {
          "enemyKill": {
            "enemies": [
              [
                "Dragon",
                "Dragon"
              ],
              [
                "Dragon"
              ]
            ],
            "explicitWeapons": [
              "Missile"
            ]
          }
        },
        {
          "heatFrames": 280
        }
      ]
    },
    {
      "and": [
        {
          "enemyKill": {
            "enemies": [
              [
                "Dragon",
                "Dragon"
              ],
              [
                "Dragon"
              ]
            ],
            "explicitWeapons": [
              "Super",
              "Plasma",
              "ScrewAttack"
            ]
          }
        },
        {
          "heatFrames": 230
        }
      ]
    }
  ]
}

Clears obstacles: A