Wait for a Viola to circle the room and fall from the ceiling.

Requires:

"canUseFrozenEnemies",
"h_crouchJumpDownGrab",
{"heatFrames": 660},
{"or": [
  {"and": [
    "h_usePowerBomb",
    {"heatFrames": 50}
  ]},
  {"obstaclesCleared": ["A"]}
]}

Clears obstacles: A

Unlocks doors:

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