Ledge grab precisely in front of the Cacatac, and jump immediately before it would hit you. If the shinespark wind-up is activated as early as possible, then a Cacatac spike hit will be taken.

Entrance condition:

{
  "comeInShinecharged": {}
}

Requires:

{
  "shineChargeFrames": 120
}
"canWalljump"
"canShinechargeMovementTricky"
{
  "enemyDamage": {
    "enemy": "Cacatac",
    "type": "spike",
    "hits": 1
  }
}
{
  "shinespark": {
    "frames": 6
  }
}

Exit condition:

{
  "leaveWithSpark": {}
}

Unlocks doors:

{"types":["super"],"requires":[]}
{"types":["missiles","powerbomb"],"requires":["never"]}