Clearing string buffer

On the intro screen of my game, the player needs to press SPACE to start. On the main game screen SPACE is used to fire. When the player presses SPACE on the intro screen and moves to the main game screen, a single shot is fired as though it's still reading the SPACE bar.

Is it possible to clear the buffer so the player need to let go of the SPACE bar and then press it again?

Ya, there are many ways to do this. The easiest is to make an event on the game screen like:

+Upon pressing "Space Bar"
+Timer is greater than 1 second

You can change the amount of time to any length you need.

Did the trick great, thanks :)