Taking damage off a Dessgeega at the far right, coming in from the top, allows you to charge a blue suit and get through to the door.

Requires:

{"or": [
  {"obstaclesCleared": ["F"]},
  {"and": [
    "canUseIFrames",
    {"enemyDamage": {"enemy": "Dessgeega", "type": "contact", "hits": 1}}
  ]}
]},
{"getBlueSpeed": {"usedTiles": 23, "openEnd": 2}},
{"heatFrames": 200}

Clears obstacles: C, E

Unlocks doors:

{
  "types": ["missiles"],
  "requires": [{"heatFrames": 30}]
}