Battle add-on to the popular Game Boy titles, based on the Japanese Pokemon Stadium 2 (Nintendo further enhanced the game by adding a gallery mode). In the game's Stadium Mode, one player competes in 80 different battles, divided into four tournaments. Beat the Stadium Mode and you're in for a bonus battle against the ultimate Pokemon warrior, Mewtwo, as well as a secret mode that gives you 80 brand-new, and devilishly tough battles. There is virtually no way you can beat the secret mode without having trained your own, elite Pokemon . One to four players compete against each other or the computer in a no-holds-barred battle with customizable rules. You can select rental Pokemon for these battles -- but that makes them much too predictable since their selection of techniques isn't determined by the trainer. You can also select quick and easy versus and random battles.