Charge a shinespark below the Oums, near the bottom right door, quickly move through the morph tunnel and spark up to the top door. This is an alternative to wall jumping.

Requires:

"Morph"
"Gravity"
"canShinechargeMovementComplex"
"h_shinechargeMaxRunway"
{
  "shinespark": {
    "frames": 33,
    "excessFrames": 3
  }
}

Dev note: Jumping into a diagonal spark saves a little energy from both the jump and hitting the slightly lower ceiling by the door.