Monster Racers is a monster-taming and racing game hybrid developed and published by Koei, and published by UFO Interactive Games in North America. It was released on January 22, 2009 in Japan, with a KOEI The Best re-release on December 10, 2009, and on May 11, 2010 in North America, for Nintendo DS. The game, set in a Pokémon-esque modern fantasy world, allows players to catch monsters and use them to compete in races. It is a spiritual sequel to the unrelated Monstar Race series, originally released in 1998 on Game Boy. It received mixed reception from critics, who praised its gameplay and graphics, but decried its lack of originality and weak story.