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Buffering a jump during the reserve fill and performing a backwards spinjump onto the item pedestal will minimize acid frames

Requires:

{"obstaclesCleared": ["R-Mode"]},
"Morph",
{"partialRefill": {"type": "ReserveEnergy", "limit": 99}},
{"or": [
  "ScrewAttack",
  {"and": [
    {"canShineCharge": {
      "usedTiles": 15,
      "steepUpTiles": 1,
      "steepDownTiles": 1,
      "openEnd": 0
    }},
    {"doorUnlockedAtNode": 1},
    {"shinespark": {"frames": 52, "excessFrames": 0}}
  ]}
]},
{"autoReserveTrigger": {}},
{"acidFrames": 16}