The Celadon Game Corner contains several games inside depending on the Generation, including slot machines, Card Flip, and Voltorb Flip, though the player needs a Coin Case to participate in any. Winning at these will award the player with coins he or she can exchange for prizes at the Prize Corner next door, including rare Pokémon such as Dratini and Porygon, as well as rare TMs and hold items. While it seems to be a popular spot for travelers and tourists, the citizens take pride in the city's beauty and think the casino is bad for its image.
In the Generation I games and FireRed and LeafGreen, this Game Corner is run by Team Rocket, called Rocket Game Corner (Japanese: ロケットゲームコーナー Rocket Game Corner) and has the catchphrase "The Playground for Grown-ups". Under the casino is the Kanto region's Rocket Hideout, with a staircase leading to it hidden in the upper-right corner. The player must gain access to the hideout in order to defeat Team Rocket and obtain the Silph Scope, by defeating a Team Rocket Grunt and pressing a hidden switch underneath the poster he was guarding. In the Generation II games and HeartGold and SoulSilver, the casino is no longer run by Team Rocket and their hideout is inaccesible, but several characters make references to its existence three years prior.
In Pokémon FireRed and LeafGreen, there is a Pokémon Printer in the corner of the building which takes a photo of the player's current Pokémon party to put on the back of the Trainer card.
In non-Japanese versions of Pokémon HeartGold and SoulSilver, the Celadon Game Corner is owned by Mr. Game, who runs the Voltorb Flip game.
Slot machines
- Main article: Slot machine
There are thirty slot machines in the Game Corner, with eight of them having people already seated at them, one that is labeled "out of order," one labeled "reserved," and one where someone left their keys.
Payouts
There are thirty slot machines in the Game Corner, with eight of them having people already seated at them.
One to three coins can be put in the slot machine each play. One coin will only count the center row across, two coins will count all three rows across, and three coins will count all three rows across as well as both diagonals. The reels stop spinning when the A button is pressed.
The posters are still there, but there is nothing behind them.
Payouts
The only games available are slots, which people in the game say are rigged. There are thirty slot machines, with eight of them already occupied, one labeled "out of order", one labeled "reserved," and one where someone left their keys.
One to three coins can be put in the slot machine each play. One coin will only count the center row across, two coins will count all three rows across, and three coins will count all three rows across as well as both diagonals. The reels stop spinning when the A button is pressed.
The machine with the best odds is at the far left, directly beneath the lady in that aisle.
Payouts
Card flip
- Main article: Card flip
The card flip game is exclusive to Generation II. Players can pick either a card or a group of cards, similar in nature to Roulette, which was included in Pokémon Ruby, Sapphire, and Emerald. In playing card flip, players place bets on cards that may be flipped over. The deck used contains 24 cards: each one has both a number (between one and six) and a picture of a Pokémon (either Pikachu, Jigglypuff, Oddish, or Poliwag). Once twelve cards have been drawn, the deck will be reshuffled. Bets can be placed on a single card, on a single column, on a single row, on a pair of columns, or on a pair of rows.
Voltorb Flip
- Main article: Voltorb Flip
Much like the Goldenrod Game Corner and European Platinum's Veilstone Game Corner, the slot machines in the Celadon Game Corner have also been replaced by Voltorb Flip for all versions of HeartGold and SoulSilver released outside of Japan. The reason for the change comes from the implementation of more aggressive and stricter legislation in the European Union towards gambling. Voltorb Flip was described in a pre-release review as "a cross between Picross and Minesweeper". It features a five-by-five grid of tiles, underneath of which are hidden numbers (which multiply the player's score if located) and Voltorb (which Selfdestruct and cause the player to lose all points gained in that round). The player can easily figure out where the Voltorb are located by using the clues provided: the number of Voltorb in each line and column are noted at the side of the screen. There is a man in the game corner that will tell what type of hidden power your pokemon has.