12

IBJ into a breakable Grapple block. The timing is very precise and requires a quick morph and ascent with precisely placed double bomb jumps. Crystal Flash then X-ray climb to the region above (less than 1 screen). There is a chance that Samus will not be able to Crystal Flash unless first placing a Bomb or Power Bomb.

Requires:

{
  "notable": "Grapple Block Crystal Flash"
}
"canUseGrapple"
"canJumpIntoRespawningBlock"
"canInsaneJump"
"canJumpIntoIBJ"
"canDoubleBombJump"
{
  "or": [
    {
      "spikeHits": 1
    },
    {
      "and": [
        {
          "not": "f_DefeatedPhantoon"
        },
        "canRiskPermanentLossOfAccess"
      ]
    }
  ]
}
"h_CrystalFlash"
"canXRayClimb"

Exit condition:

{
  "leaveNormally": {}
}

Unlocks doors:

{"types":["ammo"],"requires":[]}

Dev note: FIXME: This may be possible without a spike hit.