You need to buy or unlock each of the retro minigame areas. There are a total of twelve retro minigame areas. * Mario Party 1: Minigame Island * Mario Party 2: Minigame Coaster * Mario Party 2: Minigame Stadium * Mario Party 5: Minigame Wars * Mario Party 5: Minigame Circuit * Mario Party 6: Treetop Bingo * Mario Party 7: King of the River * Mario Party 8: Test For the Best * Mario Party 8: Tic-Tac-Drop * Mario Party 9: Boss Rush * Mario Party 9: Step It Up * Mario Party DS: Score Scuffle * Mario Party Island Tour: Time Attack