Jolteon was pretty crazy in that it was both on Pikachu's and on Espeon's place, but there's actually something interesting in it: Red has a Jolteon on Stadium 2, so, it was technically a Pokémon already shown. I really liked the Pikachu scene though; short and nicely symbolic, and it gives you a nice idea of how Red's team is formed. I do wonder where he got the second Eevee (Espeon) from, though.