No charge
Website will have pricing and deals, but like the others said, no charge to park or enter.
No entrance fee
There is no gate free. So, you just get in for free. You play for each game or activity and there are special passes like a daily pass, monthly pass or a yearly pass, which provide great savings.
No charge, however to play the arcade and access the rest of the park, you do have to pay.
No charge to get in, just pay for whatever or however much you want to play
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