This last video from Youtube user MineCreat pays homage to Red, the original Pokemon trainer and Ash Ketchum's predecessor. While you play as Red in Pokemon Red and Blue, in the second generation games Pokemon Silver and Gold you had the opportunity to face Red in battle.
If you complete the game, level your Pokemon up so they're all around level 80, and then wind your way through Mt. Silver, you'll find Red. He'll meet you with a Blastoise, Charizard, Espeon, Pikachu and Lapras. Just looking at this image makes me feel like I need to go EV train and level grind.