It all depends on what you're scoring - a timer for time based score, a global var to keep track of the current score, etc. There are any number of ways to create one - you'll need to be more specific
There are a ton of examples out on the web - but this is the basics you'll need - and instead of a trace, update the text field with the count and you'll have seconds
// Somewhere in the main function var myTimer:Timer = new Timer(1000); myTimer.addEventListener(TimerEvent.TIMER, updateTimer); myTimer.start();