Can we just play in the arcade?

Yes you sure can.

Yes. You just go to the kiosk and buy a refillable card for $1 each and then add money to them. They are reusable so just keep them if you plan on coming back so you won't have to purchase more cards.

Yes you can

Yes

Yes, not that you need another yes, but I guess the more that agree, the more it's believable.

Sure thing