Most of the games run about $1-$2 (2 if 2 players). In the arcade there are machines similar to coin machines. You put in your sea pass card and can charge (credit)amounts on to it (not sure but the minimum might be $10). You then slide the sea pass card through the slots on the games and it will be deducted. If you have kids, you might want to set up a limit when checking in so they dont go wild. I saw kids constantly playing games with friends, then going to the machine and charging more. It can add up fast on a week long cruise!