{
  "difficulty_mults": {
    "enemy_hp":   [0.7, 1.0, 1.0],
    "player_dmg": [0.7, 1.0, 1.0],
    "wave_count": [1.0, 1.0, 1.2],
    "boss_hp":    [1.0, 1.0, 1.3]
  },
  "boss_hp": {
    "4": 450.0,
    "5": 1800.0
  }
}