If you see an item with a really high chance of being selected, spend an Arcade Ticket to play! But don't be afraid to hold off until you see something good. Each time you arrive at an inn, the odds of receiving one of the four randomly selected items will change. The Roulette allows for you to receive four items from a pool of several: a snack, a weapon, armor, some experience points (EXP), or Jolly Jaunt Tickets.
At the inn, there's an arcade where you can play one of two games: Roulette and Rock, Paper, Scissors.