Specific Pokemon cannot be selected in this mode. Either play against the computer or against a friend in a 2-player battle. An Event Battle is for 2 players and requires two Game Boy games and Transfer Paks. Go to the Trainers' Plaza for tournament battles, mini-games, and to visit the machines containing Pokemon data. In the Stadium, there are 4 tournament cups to be won.
Players compete in the tournaments in single-player mode.
A Free Battle is a 1 to 4-player mode battle in which players can control a team with a friend. In the Gym Leader Castle, battle with Gym Leaders who appeared in the Game Boy versions of Pokemon. In the GB Tower, play the GameBoy game on the N64.The 9 mini-games can be found in the Kids Club. In Clefairy Says, players need to repeat sequences on their controllers given to them by the Clefairy teacher. Kids need to repeatedly press their buttons and time their jumps well in Run, Rattata, Run as they race to the finish line, clearing hurdles along the way.