You don't need to catch them all, just certain ones, but those ones you REALLY need to catch. Or someone else will catch the ones they need and then the game will be over. Plus, think of those poor pokemon, stuck in a maze, all alone. Just dreadful.
Explore the labyrinth with Pikachu, Squirtle, Charmander, or Bulbasaur to find Eevee, Gengar, and more! See which Pokémon you need to catch next, then shift the maze to reach them. Be the first to catch all the Pokémon on your cards entries and return to your starting place to win!
On French roads there were small marker stones giving the distance in kilometers to the next town. In this famous old French card game, players compete to drive 1000 km, dealing with hazards along the way.