Shoot the shot block, then Spring Ball on the middle platform.

Requires:

"h_useSpringBall"
{
  "or": [
    {
      "and": [
        {
          "or": [
            "HiJump",
            "canCarefulJump"
          ]
        },
        {
          "heatFrames": 185
        }
      ]
    },
    {
      "and": [
        "canLateralMidAirMorph",
        {
          "heatFrames": 120
        }
      ]
    }
  ]
}