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Freeze a Zeb inside the left wall of the room, and use it to clip into the wall and X-Ray climb. Note that jumping directly against the wall to clip into it will put Samus into a forced crouch, unable to use X-Ray. Samus may either 1) perform a Crystal Flash to stand up, 2) use neutral knockback from a Reo to put Samus standing inside the wall, or 3) use the frozen Reo as a platform to run and clip into the wall. To manipulate the Reo into a suitable position, lure it to the left and crouch at the edge of the platform; jump as needed to bring it back on camera when it goes off; it should perform 4 big swoops down to the left, 2 small swoops (hitting the overhang above), then 5 more big swoops, after which it will enter a slow hover moving directly towards Samus. Freeze the Reo when its left side is approximately flush with the ledge, or up to about a tile to the right. After X-Ray climbing about 1.5 screens, the sound of the crumble blocks breaking is an indication that it is safe to end the climb, either by jumping up or by falling out to the right. Alternatively, there's no harm in continuing to climb, as the lack of door means it's impossible to climb beyond the destination.

Requires:

{
  "notable": "Wall Ice Clip X-Ray Climb"
}
"canWallIceClip"
{
  "or": [
    "h_canCrystalFlash",
    {
      "and": [
        "canNeutralDamageBoost",
        {
          "enemyDamage": {
            "enemy": "Reo",
            "type": "contact",
            "hits": 1
          }
        }
      ]
    },
    {
      "and": [
        {
          "or": [
            "canWalljump",
            "SpaceJump",
            "canInsaneJump"
          ]
        },
        "canTrickyDodgeEnemies"
      ]
    }
  ]
}
"canXRayClimb"

Dev note: The Zeb moves 2 pixels per frame, and there are 3 positions where it can be frozen inside the wall using Ice beam alone, namely 2 pixels, 4 pixels, or 6 pixels deep inside the wall. For the method that uses the frozen Reo as a platform, only the 2-pixel-deep position will work; by moonwalking back inside the 2-tile space, it will work 100% reliably as long as the Zeb is frozen in that exact spot. For the method that jumps directly into the wall (with a Crystal Flash), either 2 or 4 pixels can work, or 6 with SpeedBooster; it will work more reliably the less deeply the Zeb is frozen inside the wall. Likewise, with the Reo knockback method either 2 or 4 pixels can work, though it is more reliable in the 2-pixel position; it helps to take the knockback a few pixels away from the wall, as it takes a few frames for the horizontal speed of the knockback to reach its maximum. The trick can work with Samus facing either toward or away from the wall when taking knockback; facing away makes it easier to quickly kill the Reo afterward to avoid taking a second hit.