Immediately on entry Spring Ball Bomb Jump. Be sure not to land left of the pillar below the door or it is harder to get up in time.

Entrance condition:

{
  "comeInWithGMode": {
    "mode": "direct",
    "morphed": true,
    "mobility": "mobile"
  },
  "comesThroughToilet": "any"
}

Requires:

"canTrickyJump"
"h_artificialMorphSpringBallBombJump"

Exit condition:

{
  "leaveWithGMode": {
    "morphed": true
  }
}

Dev note: FIXME: This is possible with Bombs by luring the hoppers to the left, but it is dependent on hopper RNG.