Battletoads & Double Dragon - The Ultimate Team is the fourth game in the Battletoads series. It is a crossover with the Double Dragon series of beat 'em up games developed by Technos Japan. It was released for the NES, with ports for the Super NES, Sega Mega Drive/Genesis, and Nintendo Game Boy. Despite the presence of the Double Dragon characters, Technos Japan had no actual role in the game's development.

Battletoads/Double Dragon is the first game in the series where all three Battletoads are playable. In addition, Double Dragon protagonists Billy and Jimmy Lee are playable characters. Though the five characters have slight differences in performance, in general the 'Toads are faster and have slower, but more powerful Smash Hits, whereas the Dragons use Dragon Techniques that reacts better but aren't as damaging.

Compared to prior Battletoads games, vehicle stages are kept at a minimum. There are only two such areas: one being a Turbo Tunnel-like hallway in Stage 2, and the other a space shoot-'em-up in the vein of the classic video game Asteroids. The meat of the game lies in platforming and fighting enemies, though the stages do present significant challenge.