Help? Dysfunctional iPod.

Ok. So here's the deal. My iPod has been working marvelously ever since the moment I got it. Today, I was playing a game on it, and put it down for literally a split second. The screen went dark, as usual. And I picked it up only a moment after it went dark.

When I tried to get it to turn on, it wouldn't. Not by hitting either of the buttons; or holding the buttons down. So, I took it to the computer to see if it would start working. It didn't. I know for a fact that the battery is completely full. I just can't figure out what happened, or why it's not working!? I don't know what to do!? Help?

 

Thanks so much! You totally helped me out!