During our visit, they gave us cards to use in the arcade for buying tickets online.
No don't have to but I would recommend it. It was a lot of people trying to get in when we were there.
I walked in and purchased annual ticket.
I would highly suggest getting them online, that way if they are sold out you don't have to get on a waitlist. During the week (m-th) is probably the slowest so you should be able to purchase at the door. Online is always the best.
Better to purchase online. Still watch your prices and the difference in days.
Yes. And you also can on premises
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