I’m coming down for the game on December 12th. Any help would be appreciated.

I'll cross post this if it doesn't belong here. If not, where should I ask? I'm coming in from Nebraska for the weekend and trying to find the best options for having a good time there. Is it best to rent a car or get a shuttle to the hotel and hang out around that area? Probably staying at the Marriott on Main St. And as far as tickets go, is it best to just order online or can I find them cheaper once I get down there? Thanks. I'm sure I'll have more questions but this is a great start.