{
  "longfooted": {
    "enabled": true,
    "max_level": 2,
    "min_cost": 12,
    "step_cost": 12,
    "bonus_per_level": 1.0
  },
  "acrobat": {
    "enabled": true,
    "max_level": 4,
    "min_cost": 15,
    "step_cost": 14,
    "bonus_per_level": 0.1
  },
  "multi_roll": {
    "enabled": true,
    "max_level": 2,
    "min_cost": 15,
    "step_cost": 17,
    "bonus_per_level": 1.0
  }
}