No idea about checks. Credit cards are accepted, though. If you want to purchase something with a credit card, the people at the table will hand you a receipt. You take that receipt to one of the few "bank" tables scattered throughout. They swipe your card for the amount on the receipt, you sign the slip, then they give you a new receipt, which you take back to the table and swap the receipt for the item.
It's annoying and complicated, especially when it's really crowded, which is why cash is preferred. But the upside to using credit cards is that you have a receipt you can use to claim the deduction on your taxes, if you care about that sort of thing.
Nothing matters but knowing nothing matters. ~ Wicked
Everything in life is only for now. ~ Avenue Q
There is no future, there is no past. I live this moment as my last. ~ Rent
"He's a tramp, but I love him."