With the multimedia/gaming mode, your Panda product continues protecting your computer without interrupting you when you are viewing full-screen videos, gaming online, etc.
The multimedia/gaming mode enables automatically whenever your PC goes into full-screen mode. While you are using your computer in full screen mode, your Panda product continues protecting you, making the appropriate decisions without interrupting you or displaying any warning messages.
If you want, you can always check the product reports for more information about the actions taken while the gaming/multimedia mode was on.