You can walk in and put your name on the list for a lane, or you can reserve priority bowling in advance. It's $125/hour per lane after 4pm. It's cheaper if you go earlier, or if you just walk in and sign up for the next available lane. If you want priority bowling they e-mail you a form. You fill it out and fax or e-mail it back with your signature and credit card info (they don't charge you until you get there). Even with the priority bowling there's no guarantee you'll walk right in and get a lane, but you will have priority over those who just walked in and signed up that day.