It is possible to climb up with a tricky dash jump and no wall jump. Either kill the Alcoon before it spawns any stationary, invisible fireballs, or let the right Alcoons shoot enough to overload projectiles.

Entrance condition:

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

Requires:

"h_heatedGMode",
{"or": [
  {"and": [
    "h_artificialMorphSpringBall",
    "h_artificialMorphSpringBallBombJump"
  ]},
  {"and": [
    "h_artificialMorphIBJ",
    "h_artificialMorphBombHorizontally"
  ]}
]},
{"heatFrames": 0}