How do you "unfreeze" an ipod?


My son got an 80gig version ipod last Friday. While he was playing a game that he downloaded from the i-tunes store, it froze.

What can he do?

Richard
drrdiamond
And if none of these suggestions work, take it to the local Mac store and let them fix it. They took my daughters ipod into the back room and came back 10 minutes later with a working unit.
My computer has crashed and I was trying to transfer my Nano tunes to my new laptop. Well I erased all 225 purchased tunes from my Nano. Is there a way I redeem them from Apple? They must have a record. someone? I want to cry....
Nuke for 30 seconds on "thaw", rotate 1/4 turn and repeat ;~) Sorry, sometimes I can't control myself. Actually these hints are helpful as their tendency to freeze up is totally annoying and, IMO, incredibly disappointing in a standard-setting product.
Swampwalker, sorry you've had bad experiences with yours but I've had four iPods and have never had any of them freeze up even once. They've been far more reliable than any of the PC's I've owned.