{
  "Level 1": {
    "snakeSpeed": 300
  },
  "Level 2": {
    "snakeSpeed": 250
  },
  "Level 3": {
    "snakeSpeed": 200
  },
  "Level 4": {
    "snakeSpeed": 150
  },
  "Level 5": {
    "snakeSpeed": 100
  },
  "No walls": {
    "snakeSpeed": 100,
    "walls": false
  }
}