http://cdn.akamai.steamstatic.com/steamcommunity/public/assets/minigame/towerattack/sfx/backgroundtrack.mp3
http://cdn.akamai.steamstatic.com/steamcommunity/public/assets/minigame/towerattack/sfx/bosslevel.mp3
http://cdn.akamai.steamstatic.com/steamcommunity/public/assets/minigame/towerattack/sfx/bosslevel2.mp3
http://cdn.akamai.steamstatic.com/steamcommunity/public/assets/minigame/towerattack/sfx/backgroundtrack2.mp3