Gain a shinecharge on the long, lower platform in the screen above, then carry it left and down. Use crumble quick drops, land on the floor at the bottom, spin jump left into the doorway, and activate the spark. The required movement here is very precise, as the 180 shinecharge frames is only barely enough.

Requires:

{
  "notable": "Leave With Spark To The Left"
}
{
  "obstaclesNotCleared": [
    "A"
  ]
}
"h_canCrouchJumpDownGrab"
{
  "canShineCharge": {
    "usedTiles": 17,
    "openEnd": 0
  }
}
"canShinechargeMovementTricky"
"canQuickCrumbleEscape"
{
  "shinespark": {
    "frames": 1
  }
}

Exit condition:

{
  "leaveWithSpark": {}
}

It is possible to do a quick crumble escape twice, requiring no other items or tech. It is easier to escape by doing a quick crumble escape, followed by a crumble block jump or using spring ball or space jump.

Requires:

"canQuickCrumbleEscape"

Quick dropping through the crumbles allows reaching the door with more shinecharge time remaining.

Requires:

{
  "canShineCharge": {
    "usedTiles": 20,
    "openEnd": 1
  }
}
"canShinechargeMovement"
"canQuickCrumbleEscape"

Exit condition:

{
  "leaveShinecharged": {
    "framesRemaining": 50
  }
}

Unlocks doors:

{"types":["missiles"],"requires":["never"]}
{"types":["super"],"requires":[]}
{
  "types": [
    "powerbomb"
  ],
  "requires": [
    {
      "or": [
        "h_canUseSpringBall",
        {
          "and": [
            "canTrickyJump",
            {
              "or": [
                "canCrumbleJump",
                "canWallJumpInstantMorph"
              ]
            }
          ]
        }
      ]
    }
  ]
}

Perform a quick-drop through the Crumble block, and grab the item. During the item message box, buffer the inputs to turn around to the right and jump. Perform a wall jump by briefly releasing and repressing jump (while continuing to hold right) after hitting the respawning crumble block, to clip up through it.

Requires:

{
  "notable": "Mission Impossible"
}
"canQuickCrumbleEscape"
"HiJump"
"canPreciseWalljump"
{
  "obstaclesCleared": [
    "A",
    "B"
  ]
}

Gain a shinecharge by running right-to-left, either using the short runway (with unbroken Super block) or an extended runway by taking a spike hit. Then spin jump, hit the ceiling, aim down, break the Super block, and turn around to quick drop through the crumble block. During the item message box, buffer the inputs to turn around to the right and jump. Once under the crumble block (the left part of it), press up while still holding jump, to immediately activate the spark and make it up in time.

Requires:

{
  "notable": "Mission Impossible Shinespark"
}
{
  "or": [
    {
      "canShineCharge": {
        "usedTiles": 16,
        "openEnd": 0
      }
    },
    {
      "and": [
        {
          "canShineCharge": {
            "usedTiles": 23,
            "openEnd": 0
          }
        },
        {
          "spikeHits": 1
        },
        "canIframeSpikeJump"
      ]
    }
  ]
}
"canShinechargeMovementComplex"
"canQuickCrumbleEscape"
{
  "or": [
    {
      "shinespark": {
        "frames": 19,
        "excessFrames": 7
      }
    },
    {
      "and": [
        {
          "shinespark": {
            "frames": 19,
            "excessFrames": 15
          }
        },
        "canCrumbleJump"
      ]
    }
  ]
}
{
  "obstaclesCleared": [
    "A",
    "B"
  ]
}

Spin jump, hit the ceiling, aim down, break the Super block, and turn around to quick drop through the crumble block. During the item message box, buffer the inputs to turn around to the right and jump. Once under the crumble block (the left part of it), press up while still holding jump, to immediately activate the spark and make it up in time.

Requires:

{
  "notable": "Mission Impossible Shinespark"
}
"canQuickCrumbleEscape"
{
  "useFlashSuit": {}
}
{
  "or": [
    {
      "shinespark": {
        "frames": 19,
        "excessFrames": 7
      }
    },
    {
      "and": [
        {
          "shinespark": {
            "frames": 19,
            "excessFrames": 15
          }
        },
        "canCrumbleJump"
      ]
    }
  ]
}
{
  "obstaclesCleared": [
    "A",
    "B"
  ]
}

Perform a quick-drop through the Crumble block, and grab the item. During the item message box, buffer the inputs to turn around to the right and jump. Break spin just before you would hit the respawning crumble block, in order to clip up through it. Then perform a crumble jump to make it out.

Requires:

{
  "notable": "Mission Impossible Walljumpless"
}
"canQuickCrumbleEscape"
"HiJump"
"canCrumbleJump"
{
  "obstaclesCleared": [
    "A",
    "B"
  ]
}