On the Game Pak Check screen of Pokémon Stadium 2, there is a Nintendo 64 cartridge with a vague label on it. This label does not match the cartridge for Pokémon Stadium 2, but instead appears to be the one used for the game Road Rash 64.

In Pokemon Gold, Silver, and Crystal versions, all of the items your mom buys with your money that appear in your room, appear in the "My Room" in Pokemon Stadium 2. Once you acquire a console, you'll then have either a NES / Famicom, SNES / Super Famicom, Nintendo 64, or Virtual Boy appear. Depending on which console you have out, the following games will appear on the TV screen:

*NES - Donkey Kong, Kirby's Adventure, Super Mario Bros., or The Legend of Zelda.
*SNES - F-Zero, Kirby Super Star, The Legend of Zelda: A Link to the Past, or Super Mario World.
*Nintendo 64 - The Legend of Zelda: Ocarina of Time, Star Fox 64, Super Mario 64, or Wave Race 64.

No games, however, appear on the TV when the Virtual Boy is out.

The Japanese version of Pokémon Stadium 2 is known as Pocket Monsters Stadium: Gold and Silver.

When fighting Lt. Surge in R2, he will use a Raichu which knows both Surf and Reversal. Raichu can know both of these moves but not at the same time, as surf can only be obtained as a special move for Pikachu in Pokemon Stadium, and reversal can only be taught through breeding in the 2nd generation (Gold, Silver, Crystal) games.

In both Pokémon Stadium and Pokémon Stadium 2, Electabuzz mistakenly has six fingers on each hand.