The first is the basic slots game from Red and Blue: insert however many coins you want (1, 2 or 3, which add more rows on the slots where you can win prizes) and try and line up the same picture. At the main desk in Game Corner (in the top left corner) you can buy 50 coins for 1000P or 500 for 10,000P.
You'll need a Coin Case, to be found in the Goldenrod Underground. Here you can buy coins, test your luck, and win fabulous prizes, including new Pokemon and TMs you won't get anywhere else. The Game Corner has been a staple of every Pokemon game up to Generation IV. Black: Victini & ReshiramWhite: Victini & Zekrom.Pokémon Ranger & The Temple of the Sea!.Mystery Dungeon - Explorers of Time & Darkness.Mystery Dungeon: Blazing, Stormy & Light Adventure Squad.Pokémon Battle TrozeiPokémon Link: Battle.