Pokémon Trainer Red

Pokemon Trainer Red is the protagonist of the first generation Pokemon games. He goes around catching Pokemon, training them, getting the badges, and eventually defeats the Final Four. You could later fight him in the second generation Pokemon games, where he has a Pikachu.

In Super Smash Bros. Brawl, he hacks and gets Squirtle, Ivysaur, and Charizard on the same file. It's pretty difficult to switch between three completely different characters at the same time, but you have to make an attempt at it due to each Pokemon having unseen stamina levels.

Ash Ketchum was obviously based on the design of Red, but they are different people. For one thing, Red doesn't break the rules of his universe...