Requires:

{"or": [
  {"ammo": {"type": "Missile", "count": 9}},
  {"ammo": {"type": "Super", "count": 3}},
  "Plasma",
  "Ice"
]},
{"heatFrames": 570}

Clears obstacles: A

Dev note: Ice can move through the room more quickly but must spend time refreezing the dragons.