Pokemon Puzzle League first launched for Nintendo 64 on September 25, 2000 in North America and March 2, 2001 in Europe.
Custom Robo first launched for Nintendo 64 on December 8, 1999 in Japan, followed by Custom Robo V2 on November 10, 2000. Neither title was ever released in the west.
Here is an overview of Pokemon Puzzle League, via the back of the game box:
Master a new challenge! Discover the most frantic, frenzied, fun-filled Pokemon challenge ever—Pokemon Puzzle League! Line up three or more blocks of the same type to clear them off the screen. Create chains and combos to send garbage to your opponent. Collect badges from other Pokémon trainers to earn the right to enter the ultimate competition… a battle against the mysterious Puzzle Master!
- A puzzle game with a Pokemon theme! Ash and Pikachu are off to the Pokemon Puzzle League Tournament to defeat the mysterious Puzzle Master.
- Six different modes in 2D or 3D! Train at Professor Oak’s Lab or Mimic Mansion, then challenge a friend or the computer in the Main Stadium, build endurance in the Marathon Field, solve puzzles at the Puzzle University, race against the clock in Time Zone, and battle Team Rocket at the Spa.
- Defeat all 15 Pokemon Trainers! Win all their badges to become the Pokemon Puzzle Master!
Watch a trailer below.