Pokémon Stadium 2 

Special Features
-Able to use all 6 game boy games out there for Pokémon (R/B/Y/G/S/C)
-Earl's Pokémon Academy complete with classes full of lectures and battles to learn all about Pokémon and an extensive library that tells you all the moves a Pokémon can learn.
-GB Tower back from Stadium 1, but for G/S/C, the new preload feature makes game play much faster.
-Two new tournaments:  Little Cup and Challenge Cup.
-3D trainer room to arrange all of your furniture.
-Mystery Gift with the girl from the Goldenrod Department Store.
-Free Battle with several different stadiums to choose from.
-R/B/Y feature:  Defeat the Elite 4 and the Champion to be able to have your Pokémon forget a present move and learn a past move.
-G/S/C feature:  Defeat the Elite 4 and the Champion to get a free Pokémon.