Find the crumble blocks and crystal flash mid-air, just below them. They are on the far left of the ceiling of the middle left pathway. Hold down as the CF ends to break the non-respawning crumble blocks. This is for the much harder version, without Gravity and Bombs.

Requires:

"h_canJumpIntoCrystalFlashClip"
"canSuitlessMaridia"
{
  "or": [
    {
      "and": [
        "h_canCrouchJumpDownGrab",
        "canTrickyJump"
      ]
    },
    "HiJump",
    "Gravity",
    "canSpringBallJumpMidAir"
  ]
}