Landing on the Game Guy Space will summon Game Guy to where he will force the player to play a Game Guy Mini-game. Game Guy first takes all of the player's coins and then takes them away to play a random Game Guy Mini-game. If the player wins, their coins will be greatly increased. However, nothing will happen if the player doesn't have any coins.
- Landing on a Game Guy Space is one of three ways to play a Game Guy Mini-game. The other is to use a Lucky Charm item on either an opponent or on the player themselves or by beating Story Mode and accessing Game Guy's Room from Mini-game Mode.