Shinespark vertically from the sand to get onto the first ledge. Carefully jump onto the second ledge and return to lure the Boulder, or shoot it with a Super.

Entrance condition:

{
  "comeInShinecharged": {
    "framesRequired": 90
  },
  "comesThroughToilet": "any"
}

Requires:

"Gravity"
"Morph"
"canPlayInSand"
"canShinechargeMovement"
{
  "shinespark": {
    "frames": 12
  }
}
{
  "or": [
    "canCarefulJump",
    {
      "ammo": {
        "type": "Super",
        "count": 1
      }
    },
    {
      "enemyDamage": {
        "enemy": "Boulder",
        "type": "contact",
        "hits": 1
      }
    }
  ]
}