An ice shot can shoot through the wall below the Morph tunnel and can freeze the Boyon even without Wave.

Requires:

{"or": [
  "canTrivialMidAirMorph",
  "h_useSpringBall",
  {"and": [
    "h_bombThings",
    {"heatFrames": 80}
  ]}
]},
{"or": [
  "canTrickyUseFrozenEnemies",
  {"and": [
    "canUseFrozenEnemies",
    "Wave"
  ]}
]},
{"heatFrames": 280},
{"or": [
  "canDash",
  {"heatFrames": 100}
]}