Just go to memory then click the game u want it for and move it to a USB But some TU's are binded and cannot been seen from there so u may have to get it off the online site (Cant remember the name of the site now.. If I remember I will post back) What game you lookin for?
Jeez lol Just had a quick look for it and cant seem to find it.. Have you checked for it on the HDD? It may not be bound
you could always transfer yah profile to a usb xTG then remove ur harddrive then start up ur zumba game,when its wants to update just update it and then add the update to the usb that way and extract it that way thats if yah have a usb formatted for the 360