Battletoads/Double Dragon: The Ultimate Team is a 1993 action game developed by Rare and published by Tradewest on the Sega Mega Drive. It is a crossover game which combines characters and environments from and inspired by the Battletoads and Double Dragon series. In addition to the Mega Drive version, versions were also developed for the Nintendo Entertainment System, Super Nintendo Entertainment System, and Game Boy.
Sony Electronic Publishing were set to publish a European version of this game, but backed away following poor review scores.
After she was defeated by the Battletoads, the evil Dark Queen flees to the outer reaches of the universe. However, one day, the Earth's military is neutralized and the giant spaceship Colossus emerges from the moon. The Dark Queen is back with another plan to dominate the galaxy, and she has allied herself with the Shadow Warriors (from the Double Dragon series) to supplement her forces. Deciding to even the odds, the Battletoads contact Billy and Jimmy Lee for help. The brothers agree, and all five immediately take off for the Colossus in a mission to stop this two-pronged threat.