Need help!

I was playing on my iMac Need For speed and tryed to command+tab so i could get to the desktop. Suddenly my Mac froze. All the colors glitched and the music kept playing in the background. I could do nothing, so i pulled the plug. Van anybody help me with this. How can i go back to the desktop without crashing.

Thanks in advance

 

hold down the power button so it reboots?
not really sure what you are asking sorry.

 

You sadly have to quit the game to get back to Finder (Desktop). That is at least my experience with gaming in Mac OS X. I know, that Windows lets one ALT+TAB between a game and other programs, but many Mac OS X games don't allow that.

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