Gravity Suit can use the main runway, while suitless must use the shelf. The entire setup can be done with just the Zeros if you are patient enough (and/or have Gravity). Gravity (only) can also run through just the first thick portion of the speedway to use the the Skulltera and Puyos.

Entrance condition:

{
  "comeInWithRMode": {}
}

Requires:

{
  "or": [
    "h_CrystalFlashForReserveEnergy",
    {
      "and": [
        "h_RModeCanRefillReserves",
        {
          "resourceMissingAtMost": [
            {
              "type": "PowerBomb",
              "count": 0
            }
          ]
        },
        {
          "partialRefill": {
            "type": "ReserveEnergy",
            "limit": 5
          }
        }
      ]
    }
  ]
}
{
  "or": [
    {
      "and": [
        "Gravity",
        "h_shinechargeMaxRunway"
      ]
    },
    {
      "and": [
        {
          "or": [
            "SpaceJump",
            {
              "and": [
                "canSuitlessMaridia",
                {
                  "or": [
                    "canPreciseWalljump",
                    "canBombJumpWaterEscape",
                    {
                      "and": [
                        "h_useSpringBall",
                        "canJumpIntoIBJ"
                      ]
                    },
                    {
                      "and": [
                        "canBePatient",
                        "canTrickyUseFrozenEnemies",
                        {
                          "ammo": {
                            "type": "Super",
                            "count": 1
                          }
                        }
                      ]
                    }
                  ]
                }
              ]
            }
          ]
        },
        {
          "canShineCharge": {
            "usedTiles": 32,
            "openEnd": 1
          }
        }
      ]
    }
  ]
}
{
  "autoReserveTrigger": {
    "maxReserveEnergy": 95
  }
}
"canRModeSparkInterrupt"
{
  "partialRefill": {
    "type": "Energy",
    "limit": 25
  }
}

Clears obstacles: A