This is a pokemon spin-off released in the Nintendo 64 in year 2000. It's selling point was allow the player have pokemon battles in 3D. For me, this is one of the best games in the whole franchise. First, let me explain the game modes: in the stadium mode you fight in tournaments against different CP players. You can use your own pokemon (from the cartridge) or rent 6 from the game (but them suck). The gym mode is pretty similar but here you fight against the gym leaders. You also have a free mode to fight with other playes, a GBA emulator and the kids' club where you can play many funny mingames with your partners. The game good points are the great modes variety, the posibility of use your own pokemon and the great graphics and animations (better that in recent games). My only gripe is that the rental pokémons have really bad moves, which made almost impossible defeat some bosses with them. In conclusion, this is a good game and an excellent purchase if you have a pokemon GB game and a N64.