Overload PLMs before touching the crumble block in the morph tunnel, then go through it after they are overloaded. This can be done with 2 Power Bombs by placing them on the center of the rightmost tile inside the ceiling morph tunnel. One tile left of the elevator.

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "direct",
    "morphed": true
  }
}

Requires:

"h_canArtificialMorphPowerBomb"
"h_additionalBomb"
{
  "or": [
    "h_canArtificialMorphSpringBall",
    "h_additionalBomb"
  ]
}