Farm the enemies on the bottom - the first Sm. Dessgeega will give back the Power Bomb used to get down. Shinecharge and use any enemy at the bottom to interrupt.

Entrance condition:

"comeInWithRMode": {}

Requires:

"h_speedDash",
{"or": [
  "h_CrystalFlashForReserveEnergy",
  {"and": [
    "h_usePowerBomb",
    "h_RModeCanRefillReserves",
    {"or": [
      {"resourceMissingAtMost": [{"type": "Missile", "count": 0}]},
      {"resourceMissingAtMost": [{"type": "PowerBomb", "count": 1}]}
    ]},
    {"partialRefill": {"type": "ReserveEnergy", "limit": 20}}
  ]}
]},
"h_shinechargeMaxRunway",
{"autoReserveTrigger": {"maxReserveEnergy": 95}},
"canRModeSparkInterrupt"

Clears obstacles: C, D